Questions tagged [testing]
The testing tag has no usage guidance.
19
questions
6
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Where may I find this camera test image?
So I wanted to compare the cameras of two phones that look like good contenders to be purchased as the daily driver.. I went over to GSMArena and found an interesting test for these cameras-
I found ...
0
votes
2
answers
58
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How to test two polarising filters against each other?
I bought 2 CPL polarising filters from the same manufacturer with the same characteristics. One is medium level and one is their highest level. The difference between them, as noted by the ...
1
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1
answer
106
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What is the optical problems in these test images and what causes them?
As I was recommended in the question How to determine which lenses are good at testing teleconverter quality? I was taking test pictures trying to determine lens/teleconverter quality. No I did not ...
1
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4
answers
150
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How to determine which lenses are good at testing teleconverter quality?
I have a Kenko 3x teleconverter and am getting generally soft images (using a Canon 5d Mark II on a tripod).
I am trying to find out how much of this is due to the quality of the teleconverter and ...
0
votes
2
answers
253
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What should I do when the results from Reikan FoCal show flaws?
I've done an AFMA calibration Reikan Software. Assuming this was properly executed, do I need to take the results seriously? All my lenses do suffer from astigmatism, and also my new Canon 24-70 f2.8 ...
2
votes
2
answers
502
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How to test image quality with a camera that is focused to infinity?
I have to test a camera that is focused to infinity, but I cannot take an image of an object that is more then 1.5 meters away from the camera because I can't get it out of the room itself. (The room ...
0
votes
1
answer
511
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What should I test on a new camera (other than a sensor check)?
In the past, when I have gotten a new camera, I have just done a black test, or what some call a "cap test". You equip a lens, put on the lens cap, then take a series of exposures at the full range of ...
0
votes
2
answers
562
views
How should I arrange a scene to test the relative sharpness of lenses with different focal lengths?
I want to compare sharpness of two lenses, consider 50mm f/1.8G vs 35mm f/1.8G from Nikon on a crop sensor camera by taking some photos (from some small size text on a paper) and review the results. ...
3
votes
1
answer
256
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Are "weather sealed" gear tested or rated for their sealing? [duplicate]
Context
So I've been looking around at camera bodies and gear and noticed the more expensive ones have "weather sealing". From posts like these, I understand how it is implemented. However unlike ...
2
votes
2
answers
386
views
Test the Stability of a Tripod?
How can one test the stability (sturdiness) of a Tripod?
It would also be handy if it can be done in-shop
15
votes
6
answers
7k
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What is the Leica look?
What is the Leica look that fans of the company claim is unique to them? What concrete differences are there that are most obvious to a layman?
3
votes
1
answer
671
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How to test the autofocus system before asking for support?
For outdoor usage I got an Olympus TG-2 compact camera. Various tests claimed autofocus: 'quick and mostly accurate' - at least I could not find any that described problems. Now, I know that I cannot ...
1
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1
answer
2k
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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 ...
3
votes
3
answers
3k
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What would be a good indoor setup to find a lens's sharpest aperture?
I read the whole of How do you find out the "sweet spot" of a lens? — great question and answer, but it didn't discuss a potential homemade rig for finding the sharpness aperture of my ...
0
votes
1
answer
603
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How to smoke test basic functionality of a D90 during buying
I think, many beginners want to buy his/her first digital camera. Can them follow some check list to understand that the product is working and working well, has not physical damages, dust and so on. ...
6
votes
2
answers
585
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What to look for when testing a wide angle lens before buying?
I'm looking at buying a used wide angle lens (specifically Canon EF-S 10-22mm f/3.5-4.5 ) for a crop camera. The question What should one look for when buying a used lens? covers the basics when ...
9
votes
3
answers
442
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What are the standard tests available to quantify lens parameters?
In some of the questions I have asked here, some of the terms frequently used to describe the difference in image quality between the cheaper lenses and the premium ones have been increased contrast, ...
9
votes
3
answers
614
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What are good test shots for finding out the capabilities of a camera?
I have a range of cameras from a (frankly awful) kiddie camera to a hybrid (Olympus Pen) and I want to take some pictures to test their (comparative) limitations.
So I want to take the same photos ...
20
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7
answers
980
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What should I look out for when buying a second-hand DSLR body?
I'm considering buying a DSLR from a friend. I've read the used lens question elsewhere on this site, but I was wondering what I should look at on the body to assess the condition?