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37
votes
4answers
13k views

What apertures are required to enable autofocus, including cross-type or high-precision focusing, on Canon DSLR cameras?

This is a follow-up to Why does Canon and Nikon limit or disable autofocus beyond certain f-numbers? I'm doing this to separate the AF aperture requirements from the linked question above. My goal ...
8
votes
3answers
1k views

How relevant are the DxOMark scores and tests?

To me the DxOMark sensor rating seems a bit bizarre. They recently rated the sensor of Nikon D3300 to the same score as the Canon 1Dx got which I find unlikely to reflect their performances, and which ...
7
votes
8answers
5k views

What is the best way to improve Aperture 3 peformance on an iMac?

I've got a 27" 2.8 i7 iMac. I recently moved from iPhoto to Aperture for managing my photos, and am not all that happy with the performance. With a bit of diagnosis, I've seen that 4GB RAM doesn't ...
11
votes
2answers
784 views

Why are mirrorless cameras much slower than DSLRs?

This is a follow-up to a previous question that I made regarding a specific camera (K-01). I've been comparing cycle times (or shot to shot times in single shot mode) of mirrorless cameras with ...
5
votes
2answers
482 views

Can firmware improve a camera?

I heard about camera firmware update. Is it recommended update the firmware? Why? Anyone knows which firmware improve camera performance (Canon EOS Rebel XS)?
10
votes
6answers
2k views

Does anyone have any tips to make Lightroom run faster?

I'm running Lightroom 2.6 on Windows XP and it runs painfully slow. Just navigating from one image to the next takes a few seconds. What can I do to speed it up?
10
votes
4answers
363 views

How do you reconcile generally positive user comments with negative comments in a review?

My question was prompted by this DPReview review of the Nikon DX 18~200mm, wherein on page 3 the author reveals some significant sharpness and distortion issues, leading to final assessments of ...
0
votes
4answers
150 views

How many keywords are possible in Lightroom without a performance penalty?

Does anyone know whether there's an upper limit to the number of keywords possible in Lightroom without experiencing a lack in performance?