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Re: Sasdly for mFT. the sharpest lens, is NOT best lens
In reply to Anders W,
4 months ago
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Anders W wrote:
eques wrote:
sigala1 wrote:
There's a big difference between the sharpest lens and the best lens.
Right you are!
For someone who doesn't only want to shoot at 75mm, the 75mm lens might actually be the worst lens rather than the best lens.
My vote for "best" primes in the system are the 25mm f/1.4 and the 17mm f/1.8, because they seem the most versatile.
And it is very sad, that none of these 17-25mm lenses is also the sharpest!
So one of the FF advantages is, that there are some of the sharpest lenses in standard FL.
Hardly the case. Many FF normal lenses are decidedly so-so. Here are the figures from LensRentals (Roger Cicala) for the best (in terms of MTF) MFT normal lens versus the best FF normal lens. Most of the FF normal lenses tested did significantly worse than the Summilux described below, in spite of being tested on sensors with higher pixel counts. The figures are line pairs per image height, center/average, at MTF 50% for unsharpened output from raw files.
Panasonic 20/1.7 on E-M5 (16 MP)
1.7 870/735
2.8 1050/875
4.0 1075/880
Leica Summilux 50/1.4 on M9 (18 MP, no AA filter)
1.4 600/530
2.0 950/740
2.8 1025/860
4.0 1110/980
Sources:
http://www.lensrentals.com/blog/2012/05/wide-angle-micro-43-imatest-results
http://www.lensrentals.com/blog/2012/01/the-great-50mm-shootout
Thank you for this information. This is very helpful for planning my gear.
And it is nice to have my assessment of the 1,7/20mm confirmed!
Peter.
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