Zobrazují se příspěvky se štítkemphoto. Zobrazit všechny příspěvky
Zobrazují se příspěvky se štítkemphoto. Zobrazit všechny příspěvky

5. května 2025

BW Beauty Photo

BW Photo 


flickr 

Fiona_Lark

fiona Louise Larkins 
www.flickr.com/photos/94495029@N07/  





Creating Dramatic Self Portraits (feat. Fiona Lark)








2 Lightroom Edits + A Technique I Wish I Knew Sooner!


Walk Like Alice
https://www.youtube.com/@WalkLikeAlice





"Stop Making Boring Black &White Photos! Masking Is the Secret Weapon!"


White Balance: My (slightly odd) Approach


I Sucked at Photography, Until I Understood This.

Sean Tucker

Sean Archer

foto


29. prosince 2024

Product Portrait Photography


Leibovitz Lighting with ONE LED!!!!

https://www.youtube.com/watch?v=7zdJuaishEQ



Visual Education - Karl Taylor

Mastering Portrait Lighting: Pro Tips for Jaw-Dropping Results!

https://www.youtube.com/watch?v=YI-PH5_fo54




Visual Education - Karl Taylor

Stunning Portraits with a Simple Two-Light Setup: No Expensive Gear Needed!

Visual Education

https://www.youtube.com/watch?v=UAq4nx8V-LA

 


Shooting Portraits with One Speedlight

Sean Tucker

https://www.youtube.com/watch?v=nuoc53wcnbc


How to Shoot Corporate Headshot Photography

Sean Tucker

https://www.youtube.com/watch?v=mUDTGMwfz3o



5 Business Portrait Mistakes to Avoid!

Visual Education

https://www.youtube.com/watch?v=Suoy0BV-kUU





Visual Education - Karl Taylor

https://www.youtube.com/@VisualEducationStudio/search?query=product


The Secret Weapon for Next-Level Product Photography: Extension Tubes & Focus Stacking!
https://www.youtube.com/watch?v=Ru-1MscbTf0




Elegant Female Portraits | The Secrets to Stunning Light Control

Visual Education - Karl Taylor






Why I Use This Professional Portrait Lighting Setup Time and Time Again!

Visual Education - Karl Taylor








PS - Color Calibration and Print Tutorial with Aaron Anderson











Print 8400


22. srpna 2024

Milky Way Processing with Photoshop

Ultimate 

Edit Along - Milky Way Processing with Photoshop






ANDROMEDA GALAXY with only a Camera, Lens, & Tripod






Bahtinova maska je zařízení používané k přesnému zaostření malých astronomických dalekohledů.




edit 
LR PS
photoshop 

24. července 2024

3. července 2024

29. června 2024

Astrophotography Photos

Choosing an Astrophotography Camera

Výběr astrofotografického fotoaparátu


ISO how much NOISE

https://www.photonstophotos.net/Charts/Measured_ISO.htm

 


Input-referred read noise VS ISO chart - what?

What is read noise?


The NPF Rule - The NPF Rule: A Formula for Sharp Star Photos Every Time
x 3



Read noise vs ISO - Astro photography


ISO and Astrophotography





Macro Photography - ISO



Milky Way Photography Tutorial - The COMPLETE Guide for Beginners










Motor 


Sky-Watcher Star adventurer 2i Wi-Fi - astro-forum.cz bazar
https://www.astro-forum.cz/viewtopic.php?t=34346  

Astrobazar Prodám
https://www.astro-forum.cz/viewforum.php?f=33
 

Návod - SkyWatcher Star Adventurer


How to Set Up The Sky Watcher Star Adventurer (ALL versions)


Star Adventurer GTI vs 2i Pro: Which Star Tracker is best for you?



GoTo

Sky-Watcher Star Adventurer 2i  Astro Pack  
392.73 $
https://ts2.store/cs/optika/14046-sky-watcher-star-adventurer-2i-astro-pack.html
 


alemat
Montáž Sky-Watcher Star Adventurer 2i (Astro pack)  9.860 Kč
 
Montáž Sky-Watcher Star Adventurer 2i (Pro Pack)  11.350 Kč


Sky-Watcher Star Adventurer 2i Wi-fi - 13.280 Kč 
https://www.atc-astro.eu/eshop/sky-watcher-star-adventurer-2i-wi-fi-2.html
 

MONTÁŽ SKY-WATCHER STAR ADVENTURER 2i (FOTOPACK - Pro Pack) - 11 350
 

Mount Star Adventurer 2i Wi-Fi Photo-Set  -  12.100 Kč


Montáž Sky-Watcher Star Adventurer 2i Pro Pack - 12.995 Kč 
https://www.novedalekohledy.cz/catalog/montaze/photomounts/view/mount_sky_watcher_star_adventurer_2i_pro_pack_art_no_sw-4295/




https://www.astroobchod.cz/mount_sky_watcher_star_adventurer_2i_sw-4034/


Montáž Sky-Watcher AllView SynScan GoTo  -  13.995 Kč


app - Syn Scan

STATIV
STATIV SKY-WATCHER STAR ADVENTURER (AZ-5, AZ Mini, ...)


Sky-Watcher Star Adventurer 2i Pro Pack WIFI Version - 420.05 $  USA
https://www.cameraconcepts.com/copy-of-sky-watcher-star-adventurer-mini-18486982.html

475 eur +
https://www.teleskop-express.de/en/beginner-astronomy-and-gift-ideas-241/astrophotography-for-beginner-246/skywatcher-star-adventurer-2i-wifi-pro-pack-travel-mount-astro-photo-set-7008


MONTÁŽ SKY-WATCHER STAR ADVENTURER GTi WiFi (POUZE HLAVA)  -  14.380 Kč
http://www.celestron.cz/montaz-skywatcher-star-adventurer-gti-wifi-pouze-hlava-2-65863.html


ZIFON motorizovaná hlava YT-2000
https://www.film-technika.com/hlavy/zifon-motorizovana-hlava-yt-2000/?gad_source=1



Part I | COMPLETE Setup Guide for Sky-Watcher Star Adventurer 2i Pro Package - Wi-Fi Enabled





Biggest landslide since Reagan in 1988.   It feels so good to have been a small part of such a monumental event.   We couldn’t have done it without X.  

Happiest day of my life since Trump B won in 2016




How to Photograph a Comet, The Milky Way & Aurora | Landscape Photography Tips & Techniques
Michael Shainblum





3 EASY ASTROPHOTOGRAPHY Targets for Beginners!  -  AstroBackyard
Pleiades    Orion   Rosette
+ sw 
Deep Sky Stacker Tutorial

LR

Astro Editing Techniques You're Probably Not Using
mike abramyan


Single, Stacked or Tracked - Milky Way Photography
Nightscape Images













Astrophotography: 14 MUST KNOW Starting Tips!





Photographing a Galaxy for 10 Seconds vs 10 minutes vs 10 Hours

www.youtube.com/watch?v=Gs8iGuyocCs








What YOU Can SEE Through a $1 Billion, $32,000 and an $800 Telescope! 







The BEST $599 Telescope for Astrophotography? Askar 71F Review











chlazení pomocí tzv. „cold-finger“ modifikace přímo u senzoru
lze minimalizovat použitím suchého vzduchu nebo argonu




Nikon D600 / D610 : full spectrum conversion : How to

Diy extravaganza








MilkyWay
Milky Way 

31. května 2024

Black and White - print

Martin Krystynek MQEP

PHLEARN - YouTube  How to Create Stunning Black & White Images in Photoshop
Black and White Portrait Photography — Pro-Tips & Techniques
 



Print perceptual vs relative

I use relative settings for more than 75% of images




DBW 
Print Custom Grey Curves For Adobe Lightroom
DBW 
www.digitalblackandwhite.co.uk/lightroom-print-curves

This CHANGED My Editing... Learn Lightroom Curves In 20 Minutes
youtube

NEW Black & White Editing HACK - Has anyone else tried this yet..?




What to wear for Black and White family photos guide


NEW Black & White Editing HACK - Has anyone else tried this yet..?






Qimage Ultimate - RIP sw 


Qimage Ultimate is the ultimate photo printing software for both professional photographers and enthusiasts alike

Qimage Ultimate Downloads
www.ddisoftware.com/qimage-u/downloads.htm



Canon imagePROGRAF iPF8400 - User's Guide







How to edit for Print - What should you 'do' with your astrophotography?


LR - Luminance range   mask
https://youtu.be/hCazWVOGkfs?si=z73OJZRZSzmg9ZfL&t=893





How to Make a Collage in Lightroom
https://expertphotography.com/lightroom-collage/

Collage in Lightroom






sw RIP vs Qimage Ultimate

Qimage Ultimate - Multi Panel Prints
https://www.youtube.com/watch?v=2GKIAm2FLS4
Qimage Ultimate - Print Unclog Pattern (Updated)

Printing: Perceptual vs Relative Colorimetric - naturephotographers.network


Picture Window Pro 7   -   simulate viewing conditions  -  Print Viewing Stations
Picture Window Pro 8

DoF 


calibrate your monitor, keep the brightness of your monitor low (say, 80 cd/m2), select the color temperature of the monitor to match that of the light that you use to judge your print (although 5000K and 6500K is not a world of difference)






Low ISO VS. High ISO + Denoise: WARNING: You NEED To See This Before Your Next Shoot!
YouTube



Canon IPF 8400 

page paper size   

A4 paper is has a 1:√2 (≈ 1:1.414)
A3 paper has an aspect ratio of 1.414
Dimensions Of A Series Paper Sizes 

Page Setup

LR - Size   -   File > Page Setup


Retain Size or Auto Expand?

Ne všechny tiskárny mají tuto možnost, ale v závislosti na velikosti papíru, na který tisknete, budete chtít vybrat velikost papíru pro možnost Zachovat velikost nebo Automatické rozšíření. Možnost Zachovat velikost nezvětšuje obrázek, což znamená, že nic neořízne. To však může vést ke vzniku tenkého bílého okraje na jednom nebo více okrajích papíru. To závisí na řadě věcí - především na velikosti papíru a zarovnání při jeho podávání do tiskárny. Pokud v nastavení tiskárny nastavíte velikost a typ papíru, neměli byste mít problém. Případně funkce Auto Expand mírně zvětší obrázek, aby se zabránilo těmto bílým čarám. Několik pixelů obrázku se však nemusí vytisknout. Pokud používáte zvláštní formát papíru nebo papír, který tiskárna nerozpozná, může to být nejbezpečnější varianta.

Adjust margins in Lightroom


Borderless Print 

As I discussed in the last section, it’s important to make sure that your image is cropped to the right aspect ratio from the start. Don’t try to force a 4:5 image onto a 16×9 piece of paper and expect it to come out without any extra space. Instead, if your goal is to print on 16×9 paper, make sure your image is already cropped to the 16×9 aspect ratio before bringing it into the printing module.

https://www.photoworkout.com/printing-in-lightroom/#step-3-set-your-photo-size



Automatic Banding Adjustment (Adj. Quality) (iPF8400) 
Manual Banding Adjustment (Adj. Quality) (iPF8400)."
https://support.usa.canon.com/kb/s/article/ART138352

výběr papíru - pruhy


Auto(GenuinePpr) : One sheet of unused paper, A4/Letter size
Auto(OtherPaper) : Two sheets of unused paper, A4/Letter size (or one sheet when using A2)

The Set./Adj. Menu is displayed.
4.Press  or  to select Adjust Printer, and then press the OK button.


Printing Images to Match Monitor Colors (iPF8400)







LR - Laying out photos in a print template

Print module layouts and templates


Temp 17






https://www.modelmayhem.com/forums/post/55828




FONT 

Parent systems: Oracle bone script > Seal script > Clerical script > Regular script > Kanji
Kanji in Japanese literally means - Han characters    Chinese

Písmolijna Heavyweight Type


Ai 愛 Kanji. The kanji koi 恋 is love for the opposite sex, a longing for a specific person, while ai 愛 is a general feeling of love. Note that the compound renai 恋愛 for romantic love is written with both koi 恋 and ai 愛

How to Write Love in Japanese Kanji





FULL INTERVIEW: 
Dr Jordan Peterson and his daughter Mikhaila sit down with Piers Morgan - Sky News Australia




Tammy Peterson: Rosary Testimony


Sky News Australia



3. března 2024

Canon imagePROGRAF iPF8400 - User's Guide

Canon Printer  iPF8400 


Qimage Ultimate - RIP sw 

https://www.ddisoftware.com/qimage-u/

Qimage Ultimate is the ultimate photo printing software for both professional photographers and enthusiasts alike

Qimage Ultimate Downloads


Print Like a Pro and Master Colour Calibration with Glyn Dewis

Calibrite





Professional Print & Layout Ver.1.6.0 (Windows)
https://sg.canon/en/support/0200577710  

Pattern Print Preview





Pattern Print Preview

Pattern Print function to view multiple images with varying color tones at one time.

https://ij.manual.canon/ij/webmanual/ProfessionalPrintLayout/All/CO/EN/DPPG/dppg_3-03.html

https://ij.manual.canon/ij/webmanual/ProfessionalPrintLayout/M/CO/EN/PPL/ppl-414.html



Nastavení intenzity/kontrastu pomocí barevných vzorků (ovladač tiskárny)

https://ij.manual.canon/ij/webmanual/PrinterDriver/W/MG5700%20series/1.0/CS/PPG/dg-c_contrast02.html




Color setting pattern print
Pattern Print function in Canon's Professional Print and Layout software
https://www.canon.cz/pro/stories/colour-calibration-explained





Print plugin for iPF 8400 not working in Photoshop 2023

https://community.usa.canon.com/t5/Production-Printing/Print-plugin-for-iPF-8400-not-working-in-Photoshop-2023/m-p/392609




Canon imagePROGRAF iPF8400 - large format printer - User's Guide - 1046 pages
 

Canon imagePROGRAF IPF8400 - Service Manual - 308 pages
 

Canon IPF8400S Basic Manual - 160 pages
 

Canon imagePROGRAF iPF8400 Setup Manual - 16 pages
 

Canon ipf 8400 repair manual



sw

imagePROGRAF iPF8400 - DOWNLOADS - Software & Drivers

https://www.usa.canon.com/support/p/imageprograf-ipf8400



https://posterartist.canon/








PRINTING PROBLEMS | Epson + Canon VERSUS Lightroom + Photoshop




VELKOFORMÁTOVÁ TISKÁRNA CANON IMAGEPROGRAF

Záruční podmínky pro tiskové hlavy

www.canon.cz/support/business/products/wide-format-printers/imageprograf/warranty/


www.manualypdf.cz/canon/imageprograf-ipf8400/manu%C3%A1l?p=111



Canon imagePROGRAF iPF8400



 
Error codes Canon imagePROGRAF iPF8400

Canon imagePROGRAF iPF8400 lines


Dimensions (W D H) = 1,893 x 975 x 1,144 mm  (74.5×38.4×45.0 in)

Weight Approx. 143 kg (315.3 lb)

Space for installation (W D H) = 2,293 x 1,675 x 1,500 mm (90.3×65.9×59.1 in) Printer only




SW driver

Canon imagePROGRAF iPF8400SE Printer Driver Download 

Windows 11


https://canoncanada.custhelp.com/app/browse/a_status/published/channelRecordID/DRIVERS_AND_SOFTWARE/pageSize/25/productCategoryAnsList/RN_PRODUCT_1291%3ARN_CATEGORY_3205%3ARN_CATEGORY_318/productRecordID/RN_PRODUCT_1291/truncate/200/type/browse

iPF8400 imagePROGRAF Printer Driver Ver.4.60 for Windows x64  

https://canoncanada.custhelp.com/app/answers/answer_view/a_id/1010700/~/ipf8400-imageprograf-printer-driver-ver.4.60-for-windows-x64






Dinax Mirage TOP RIP sw but much more expensive than Qimage Ultimate - sw 

https://dinax.com 
Mirage
Home of FineArt Prints


Get a first taste of what Mirage 2025 has to offer

1. Print templates

2. Template Editor

3. Free layout of files on the spread

4. Clear program interface

5. Improved print preview

6. File & Templates browser

7. Multiple print jobs at the same time

8. “Undo/Redo” function

9. Improved handling/placement of embedded logos

10. New tools for image editing

11. New print modeOnly Black Ink

12. Settings option “Simulation”

13. Additional print marks

14. Support for current operating systems







Leave a Comment / Canon Drivers, Drivers / By Muhammad Tayyab

https://www.printerguider.com/canon-imageprograf-ipf8000-driver/#Canon_imagePROGRAF_iPF8400SE_Printer_Driver_Download   



HP Designjet XT950 Printer (36-inch)

www.tavco.net/online-calculators-aec-technologies



Re: How to print 4 images to a page for many photos?
https://www.dpreview.com/forums/post/65121590

Forum Canon IPF 8400 forum
https://www.dpreview.com/search/forums?query=Canon+IPF+8400&forum=1003

Canon IPF8400 - Precision problem
https://www.ColorPrintingForum.com/threads/canon-ipf8400-precision-problem.11947/


imagePROGRAF iPF8400 will not print Custom Paper Sizes/Custom Print Sizes
https://community.usa.canon.com/t5/Production-Printing/imagePROGRAF-iPF8400-will-not-print-Custom-Paper-Sizes-Custom/m-p/382763#M303

ipf8400 All of the sudden not printing the correct size after Windows Update?
https://community.usa.canon.com/t5/Production-Printing/ipf8400-All-of-the-sudden-not-printing-the-correct-size-after/m-p/367329


https://www.bhphotovideo.com/c/product/994671-REG/canon_8366b001aa_pfi_706_12_color_ink_kit.html


Canon 1067/30/Roll Paper Satin Photo, 1067mmx30m



Color Calibration Using the Printer Sensor (iPF8400)

Printing Images to Match Monitor Colors (iPF8400)

COLOR PRINTER TEST PAGE CANON COLOR PRINTER TEST
PAGE ELEGANT PRINTER COLOR CALIBRATION TEST






Loading Cut Sheets into Canon iPF8400



Clean Head - print every 50 hours  
unclog tool - schedule tool

Qimage Ultimate - Scheduling unclog jobs
https://www.youtube.com/watch?v=iR85nIPGW3E

One of the Biggest Reasons You should use QIMAGE Ultimate and ONE!
https://www.youtube.com/watch?v=YAhBuG8YtDM   


Which paper is best for your photo prints. What sort of paper is best and how to choose between them

Better photo prints - Best screen settings for prints/editing. Getting the prints you want

HUGE Aluminum Prints! | How aluminum prints are made #HDaluminumprints #printing #largeformat


Cleaning your Canon imagePROGRAF

How To Release The Carriage On A Canon imagePROGRAF iPF Series Printer


Moving a Canon IPF 8400 & Epson 3880's - 10 miles

Preparing to Transfer the Printer - iPF830/iPF840/iPF850



Canon iPF8400 - Parts Catalog  page 1




Canon Printing Cost Calculator - TCO - Total Cost of Operation

PFI-706MBK - Matte Black Ink Tank (700ml) - $326.00
Canon PFI-706 Photo Cyan Ink Cartridge for Select imagePROGRAF Printers (700mL) - $326.00
Canon PFI-706 Magenta Ink Cartridge for Select imagePROGRAF Printers (700mL) - $326.00
Canon PFI-706 Yellow Ink Cartridge for Select imagePROGRAF Printers (700mL) - $326.00

Canon PFI-706B (Modrá) - Množství inkoustu 700 ml - 1.699 Kč - 1 ml 2,427 Kč
Canon PFI-706C (Azurová) - Množství inkoustu 700 ml - 1.699 Kč - 1 ml 2,427 Kč



Cost Analysis Sheets iPF9400 8400 Cost Analysis

Canon imagePROGRAF iPF8400 / iPF9400 - Cost per Print and Ink Yield Analysis  

Canon Artistic Satin Canvas 

Flower  60” × 75”  31.25 ft2  -  152.4 x 190.5 cm = 2,9032 m2

Ink Cost/Print - $28.10 - 1ml $0.524/330ml   53,63 ml

Media Cost/Print -  $76.79

Total Print Cost - $104.89

Canon Back Print Backlit Film

Flower 42” × 52.5”  15.32 ft2   -  106.68 x 133.35 cm = 1,4225 m2   

Ink Cost/Print - $8.35 - 1ml $0.524/330ml   15,93 ml

Media Cost/Print - $15.81

Total Print Cost - $24.16

Canon Fine Art Photo Rag by Hahnemuhle

Flower 36” × 45”   11.25 ft2  -  91.44 x 114.3 cm = 1,0452 m2   

Ink Cost/Print - $8.62 - 1ml $0.524/330ml   16,45 ml

Media Cost/Print - $22.57

Total Print Cost - $31.19



Canon iPF830 / iPF840 / iPF850 Cost Analysis

Configuring Unit Costs Including Ink and Paper - PRO-1000 (Mac)
















TISK VELKOFORMÁTOVÝCH FOTOGRAFIÍ
www.bednarfoto.cz/cenik/#cenikvelkoformat


Miroluk - 1699 Kč 700 ml  tj 2,43 Kč 1ml
www.miroluk.cz/tiskarna-canon-ipf-8400.html?strana=2





Canon plotter tiskárna
print
tisk


30. ledna 2024

Photo Studio Light

Photo Studio Light


Light Bulbs E27 Photography 5500K

www.aliexpress.com/w/wholesale-Light-Bulbs-E27-Photography-5500K.html

https://www.aliexpress.com/w/wholesale-Light-Bulbs-E27-light-5500K.html

Například parametry:
Andoer E27 135W Spiral Fluorescent Light Bulb 5500K Daylight CRI90 Socket Energy Saving 110V/220V for Photography Video Lighting 


6000 lumes/s


No1 explanation from  Kateryna PHOTOTALK



Luminous flux = Lumens  lm
illuminance 


inverse square law light intensity
 



0,5 m   6900 lux : 4 = 1725 lux
1,0 m   1725 lux 


4. Guide Number - speed light

Light meter - incident light meter 

Difference Between Reflective and Incident Metering

Calculate and compare light 













SH 2pcs 135w Photography Bulb Lamp Lighting Softbox Soft Box 5500k Light Cfl Balance Daylight For Photo Video Studio Shooting

Retro Dimmable LED Edison Bulb E27 3W Gold Spiral Filament ST64 G125 Ampoule LED Lamp Incandescent Chandelier Decorative Lightin

150W Photographic Lighting LED Bulbs 135W 45W E27 Base 5500K Lamp Daylight Bulb For Photo Studio Softbox Lighting Equipment

CZK 3,525.96 

Price includes VAT

JINBEI EF120/120BI LED Video Light COB 120w Lightweight Body 2700-6500k CRI96+ Bluetooth Photography Lighting App Control


2-5pcs LED Bulb AC 220V E27 LED lamp 60W 50W 40W 30W 20W 15W 10W 7W 3W Lampada LED Light Bombilla Spotlight Lighting Lamp

https://www.aliexpress.com/item/1005006114635083.html


POE Switch 8 Port 100mbps/1000mbps Gigabit with IEEE 802.3af/at 4/8/16/24 Port Network Switch For IP Camera AI Smart 52V Switch
CZK 730.61
https://www.aliexpress.com/item/1005005948822759.html

KuWFi 8 Ports POE Switch 100Mbps Wifi Smart IP Switch POE Standard RJ45 Injector Switcher for IP Camera/Wireless AP/CCTV
CZK 367.70
https://www.aliexpress.com/item/1005006633422713.html




blesk foto photo strobe

aliexpress


6. ledna 2024

Photography - Focusing Correctly?

Are you Focusing Correctly?





Nigel Danson



Thomas Heaton



DJI's LEAKED camera to DESTROY CANON! Terrible AI headshots EXPOSED!

Tony & Chelsea Northrup

Hasselblad  -  dji huawei camera
https://www.youtube.com/watch?v=mYvSXZFOK4o




Print - What should you 'do' with your astrophotography?





focus sharp camera photo photography



5. ledna 2024

Nikon 24-70mm f/2.8 focus distance




Minimum focus distance
35-50 mm focal length: 0.38 m/1.25 ft from focal plane
24, 28, 70 mm focal lengths: 0.41 m/1.35 ft from focal plane

Maximum reproduction ratio 0.28x

Nikon FX-format D-SLR cameras: 84°- 34°20'
Nikon DX-format D-SLR cameras: 61°- 22°50'



NEWER: Nikon 24-70mm f/2.8 E VR (2015-)


v porovnání s Z 24-70/4 S





focal length: 24 mm
sensor width measure: 36 mm
sensor height measure: 24 mm
sensor diagonal measure: 43.27 mm
diagonal angle of view: 84.06°
horizontal angle of view: 73.74°
vertical angle of view: 53.13°
 
focal length: 50 mm
sensor width measure: 36 mm
sensor height measure: 24 mm
sensor diagonal measure: 43.27 mm
diagonal angle of view: 46.79°
horizontal angle of view: 39.6°
vertical angle of view: 26.99°
 
sensor width measure: 36 mm
sensor height measure: 24 mm
sensor diagonal measure: 43.27 mm
diagonal angle of view: 34.35°
horizontal angle of view: 28.84°
vertical angle of view: 19.46°




Nikkor 70-200 mm f/2.8  focus distance

Minimum focus distance
1,5 m etc from the image sensor at the wide-angle end?

Maximum reproduction ratio 0.2x

The maximum reproduction ratio means
the largest that you can make a subject on the film/sensor compared to its real-life size


All Nikon 80-200 and 70-200mm f/2.8 Lenses Compared
https://www.kenrockwell.com/nikon/80-200mm-history.htm


Best Macro Lenses
Macro lenses - Makro objektiv
https://www.kenrockwell.com/tech/best-macro-lenses.htm


https://www.kenrockwell.com/tech/reviews.htm




photo camera foto 24/70 70/200 mm objektiv

26. listopadu 2023

Zvětšování fotografií - UPScale

 

Nástroj Upscayl

Jak funguje aplikace na zvětšování fotek Upscayl? Zvýší rozlišení snímku několikanásobně


Jak funguje aplikace na zvětšování fotek Upscayl? Zvýší rozlišení snímku několikanásobně
cnews.cz


Smart Upscaler, Nero Image Upscaler, HeyPhoto

Convert images to JPG
Transform PNG, GIF, TIF, PSD, SVG, WEBP, HEIC or RAW to JPG format.


www.iLoveImg.com/upscale-image

Upscale.media

www.imgupscaler.com

www.upscalepics.com


https://magnific.ai


AI
foto
photo

zvětšení foto fotky fotografie

17. listopadu 2023

Ostření na hvězdy s Bahtinova Maska

Milky Way zaostřit 


Tri Bahtinov Mask

A Tri-Bahtinov mask for SCT collimation and focusing


Comparing different focusing masks for camera lenses.

Bahtinova Ostřící Maska

Focusing Mask
Focusing Herringbone Plate


Samyang MF 14mm f/2.8 Mark 2 lens review with samples

Bahtinov Mask Drawings Generator



 


Farpoint Tri-Bahtinov Mask for Celestron 8 Classic
https://farpointastro.com/products/farpoint-tri-bahtinov-mask-for-celestron-8-classic



Pavel Bahtinov

Bahtinov factor 150, 220
better 





DWARF 2 | How To Get PERFECT Galaxy Focus With A Bahtinov Mask!
https://www.youtube.com/watch?v=6UCOzdjwwM8


Which is the best alternative to the Bahtinov Mask - Carey or Tri?
https://www.youtube.com/watch?v=OfJA8QpMqtA


Star Test to Fix Your Telescope


How to achieve a perfect focus (Using a Bahtinov mask)


Which is the best alternative to the Bahtinov Mask - Carey or Tri?





COMPARISON
Better alternative to Bahtinov Focusing Mask
https://www.cloudynights.com/topic/224593-better-alternative-to-bahtinov-focusing-mask/




Bahtinov Mask for 100mm Telescopes

kendrick-bahtinov-focus-mask

https://telescopescanada.ca/products/kendrick-bahtinov-focus-mask


Comparison of Spike Images from Bahtinov and Tri-Bahtinov Masks and DIY: Bahtinov Masks.


https://optcorp.com/collections/bahtinov-masks?page=2

https://optcorp.com/collections/bahtinov-masks?page=1

https://www.etsy.com/listing/1670874235/bhatinov-mask-for-different-size-camera

https://www.etsy.com/ie/listing/1144644627/bahtinov-focusing-mask-49-127mm-for

https://davidastro.com/en-eu/products/william-optics-105-148mm-bahtinov-focusing-mask

https://astro.com.sg/astrophotography-equipment/focusing-masks-for-astrophotography/farpoint-bahtinov-mask-for-rasa-8


https://www.astrodog.com.au/product/60mm-bahtinov-mask-fishbone-calibrator/




Screw Šroub 
up to 1300P Brass Insert Nut Assortment Kit M2 M2.5 M3 M4 M5 M6 Female Thread Knurled Embedment Injection Nuts for 3D Printing
https://www.aliexpress.com/item/1005006788928337.html

5pcs M4 Brass Round Coupling Nut Female Thread Cylindrical Stud Standoff Sleeve Double Pass Hollow Pillar Width 6mm L=10-50mm
https://www.aliexpress.com/item/1005006329354108.html


Brass Knurled Hand Screw / Copper Flat Round Head Advertising Nail Flat Head Bolt M3M4M5M6
https://www.aliexpress.com/item/1005007105818521.html

10pcs M3 M4 M5 M6 M8 304 Stainless Steel Lengthen Round Coupling Nut Internal Thread Cylindrical Joint Nut Sleeve Tubular Nuts
https://www.aliexpress.com/item/1005004170809229.html

M3 M4 M5 M6 M8 M10 ~M16 304 Stainless Steel Extension Thicken Round Column Joint Coupling Nut Cylindrical Connect Screw Nut
https://www.aliexpress.com/item/1005005441941156.html

M4 Brass Round Coupling Nut Female 10 pcs

Extension Thicken Round Column Joint Coupling Nut Cylindrical Connect Screw Nut



sharpening
sharp

sky
stars
collimation focusing mask
duncan mask for collimation focusing mask
schmidt cassegrain dunkin mask duncan mask for collimation focusing mask


1. listopadu 2023

Astrophotography


Astrofotograf Petr Horálek

Životní projekt, říká astrofotograf Horálek o své koláži meteorických rojů

roj Kvadrantid



Zatmění Měsíce
https://www.astro.cz/na-obloze/zatmeni.html


Focení meteo jevů a přírody



Pavel Gabzdyl
https://x.com/GabzdylPavel/status/1795130589038698743



Opavští vědci bodují při výzkumu černých děr, řadí se ke světové špičce


Fotograf Daniel Ščerba - Červení skřítci



Featured Eclipses in Europe
https://www.timeanddate.com/eclipse/list.html?region=europe&starty=2020


What Does the Magnitude of an Eclipse Mean?

How to Take Pictures of a Lunar Eclipse


EUROPE - Evropa

29 Mar 2025 Partial Solar Eclipse

12 Aug 2026 Total Solar Eclipse

2 Aug 2027 Total Solar Eclipse

26 Jan 2028 Annular Solar Eclipse

12 Jun 2029 Partial Solar Eclipse



18 September 2024  Partial Lunar Eclipse

14 Mar 2025  Total Lunar Eclipse

7 Sep 2025  Total Lunar Eclipse

3 Mar 2026  Total Lunar Eclipse

31 Dec 2028  Total Lunar Eclipse

26 Jun 2029 Total Lunar Eclipse

20–21 Dec 2029 Total Lunar Eclipse


  



How To Edit Astrophotography and Milky Way Photos | Adobe Lightroom - by Nateinthewild



Nateinthewild



Editing Single Exposure Milky Way Image - by Nightscape Images





Astro Editing Techniques You're Probably Not Using - by mike abramyan














Create Printable Calendar  PDF


Stars hvězdy obloha oblohy



Milky Way

Stars 

Star

1. srpna 2023

HEIC vs. JPG file Comparison

HEIC vs. JPG Comparison



HEIF    - High-Efficiency Image Format
HEIC    - High-Efficiency Image Container
HEVC -  High-Efficiency Video Container



HEIC vs JPG: What’s the Difference


How To Convert HEIC Images To JPG








How to make Samsung phone capture JPG photos instead of HEIC, HEIF - YouTube


Galaxy S20/S20+: How to Enable/Disable Convert HEIF Images to JPEG When Sharing




HEIC/HEIF auto conversion to JPG - Samsung community











40 nejlepších klávesových zkratek aplikace Microsoft Excel




Jak používat COUNTIFS, SUMIFS, AVERAGEIFS v aplikaci Excel




30+ nejlepších klávesových zkratek aplikace Microsoft Word









Home ► Photo Mechanic 6   -   PM  -  camerabits.com





HEIC vs. JPG – Storage

Photo 

Foto


4. června 2023

Top sw for photo selection

PhotoMechanic top fast photo select sw

https://home.camerabits.com








10 Best Photo Management Software in 2024
https://expertphotography.com/best-photo-management-software/


https://narrative.so/select








  filtr
  foto
  filter 
  filtrování
#photopea
  Photopea 
  download
  
camera jpg raw heic HEIC TIFF PSD   
free photoshop = www.photopea.com


20. března 2023

ChicagoHenge Sunrise Sunset

AstroFan: Understanding Chicagohenge



ChicagoHenge! When, Where, And How To Shoot It?

How long does ChicagoHenge last?

Editing

Here are the exact changes I made in Lightroom. I made very few edits to this photo as it looks stunning straight out of the camera 




Sun
Sunrise Sunset 
Východ Západ Slunce

Manhattan 
Manhattanhenge

Stone henge 
Stonehenge historie
Henge je typ pravěkého rituálního kruhové plochy, monumentu 



Manhattanhenge



Sun Direction

https://sun-direction.com


Shade Map
https://shademap.app/@50.20899,15.84586,12.6708z,1710867175767t,0b,0p,0m





Obratník Raka je obratník na severní polokouli Země


Obratník Kozoroha je obratník na jižní polokouli Země


V létě na severní polokouli Slunce vychází severovýchodně a zapadá severozápadně.
To znamená, že Slunce cestuje po obloze po delší trajektorii, což vede k delším dnům a kratším nocím.

V zimě naopak Slunce vychází jihovýchodně a zapadá jihozápadně.
Jeho dráha po obloze je kratší, což způsobuje kratší dny a delší noci.



Když na severní polokouli Slunce vychází přesně na východě (90°) a zapadá přesně na západě (270°), což jsou geografické směry odpovídající úhlovým stupňům na kompasu, dochází k tomu během rovnodenností. Rovnodennosti nastávají dvakrát do roka, na jaře a na podzim, a označují okamžiky, kdy Slunce přechází přes rovník, což znamená, že den a noc mají po celém světě přibližně stejnou délku.

180° se nejspíše naráží na myšlenku, že Slunce vychází a zapadá na opačných stranách obzoru. Pokud bychom to vzali doslovně, 180° proti východu (90°) by bylo západní směrem (270°), což je běžný jev.

Jarní rovnodennost nastává kolem 20. nebo 21. března, kdy Slunce vychází přesně na východě a zapadá přesně na západě, a den a noc jsou po celém světě téměř stejně dlouhé.

Podzimní rovnodennost nastává kolem 22. nebo 23. září, kdy opět Slunce vychází přesně na východě a zapadá přesně na západě, a den a noc jsou opět po celém světě téměř stejně dlouhé.

Tento jev je důležitý pro pochopení ročních období a je základem pro kalendářní systémy po celém světě.













Jozef Kroner