Time to be with your loved ones

Time to be with loved ones

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2
votes
0answers
39 views

Help with calculating resolving power

I have liked your responses to the MTF questions and wondered if you could help me clear up an issue I have encountered. I have a Canon 7D with an assortment of EF and EF-S lenses. The current issue ...
5
votes
3answers
433 views

For MTF, why does 10 represent contrast while 30 represent resolution?

I'm trying to learn to read MTF charts. Everything is making sense to me, except why most explanations of MTF will refer to the 10 l/mm line as a measure of contrast while referring to the 30 l/mm ...
0
votes
1answer
525 views

How can I compare MTF50 to a manufacturer's MTF chart?

Currently working with a trial-copy of QuickMTF (Imatest's software kept crashing on me), and I'm trying to get some basic MTF readings for my Canon 85 f/1.8 lens on a 6D. My first set of test shots ...
5
votes
5answers
8k views

What are my options for an FX wide-angle prime to suit the D800's successor? [closed]

I have a D700 which I'm not planning to replace at this point in Nikon's product cycle. I'll porbably buy the D800's successor. Not because I don't like the D800 (especially its usability ...
2
votes
1answer
308 views

Is the BxU measure of lens resolution still used by anyone?

The background In 2004 DxO released DxO Analyzer. It pioneered a new measure of lens resolution that it called BxU or Blur Experience Unit. Luminous Landscape reported on it (DxO Explained) and ...