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Auto chinon 28mm f2.8 m42
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PostPosted: Sat May 01, 2010 1:11 pm    Post subject: Auto chinon 28mm f2.8 m42 Reply with quote

I tried to do a little sharpness test for the first time ever.
i've picked this lens up yesterday for 2 euro on a fleamarket in holland.
here are my results:

this was my first test ever so if you got any comments on how to improve it or get more accurate results please tell me and i'll re-do the test.



f2.8



f3.2



f4



f4.5



f5.6


PostPosted: Sat May 01, 2010 4:40 pm    Post subject: Reply with quote

Hi.

Good lens, endeed.

What cam did you use? The exposures aren't so consistent. Some overexposed, other well and some underexposed. It seems that perhaps anything went wrong


PostPosted: Sat May 01, 2010 5:23 pm    Post subject: Reply with quote

canon 450d, its quite hard to get consistent pictures due to no lighting meter on it because it does not see the aperture value.


PostPosted: Sat May 01, 2010 7:04 pm    Post subject: Reply with quote

The later ones are good but the 1st couple are overexposed. Watch the histogram and apply a bit of -EV.


PostPosted: Sat May 01, 2010 8:29 pm    Post subject: Reply with quote

will try tomorrow, what do you guys think of the overall sharpness of the lens