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Photography : Recent Questions and Answers (Page 46)

Find answers to your questions about Photography or help others by answering their Photography questions.

Why doesn't noise reduction have any effect in Rawtherapee?

I am processing some raw images from my Canon camera. I am using Rawtherapee on a Mac desktop. When I try to apply noise reduction, the changes are not taking...

Asked on 07/06/2021

2 answer

Sigma 150-600mm + 1.4x TC

Am trying to get 1.4x extender for my Sigma 150-600 contemporary lens (canon Mount), would like to use it for wildlife / bird photography. Camera am using: 5D Mark III...

Asked on 07/06/2021 by Sreedhar

1 answer

PhotoFlo for Color negs OK?

I'm new to developing my photos by my self.I bought the Cinestill SC41 kit and I was planning to buy a squeegee to wipe of the water on the...

Asked on 07/06/2021 by Charles Lee

0 answer

How do I transform LP/pixel to LP/PH in MTF plot?

I'm working on computing MTF plots for smartphone camera. I've a working code in Python inspired by plenty of codes found online, MATLAB, Peter Burns and his sfrmat etc.. which...

Asked on 07/06/2021

1 answer

Does a lens with this zoom range exist?

I want to buy a zoom lens for a DSLR but I want its Focal length to start from a small number (18, 55, 100, 200) and end to a...

Asked on 07/05/2021

4 answer

Where does this noise come from and how to get rid of it

I am using Darktable as my RAW processing software. In darker pictures that have been taken with an ISO of 800 or more, I frequently encounter great issues with luminance...

Asked on 07/05/2021 by Andreas T

4 answer

How to resolve error "-.-" and not able to take pictures on an Olympus OM-D E-M10?

I'm getting this error on my Olympus OM-D E-M10 and I can't take any pictures: ...

Asked on 07/05/2021 by Devina Naidu

2 answer

What is the cause of these colored dots?

I recently bought a used Canon 6D with the 24-105 f/4 L USM kit lens. After shooting some outdoor pictures at night, I noticed some colored pixels or dots in...

Asked on 07/05/2021 by ADDelta

0 answer

What does it mean when a scanner or printer has asymmetric resolution (e.g., 600 x 1200)?

What does it mean when a scanner or printer has asymmetric resolution (e.g., 600 x 1200)? If you print/scan something that is quadratic, would you get different quality if you...

Asked on 07/04/2021

2 answer

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