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105 os macro tested on SD1M

Started Jul 4, 2017 | Discussions thread
OP George_pix Regular Member • Posts: 105
Re: 105 os macro tested on SD1M

Hi Scott, the other lens is the kit lens 17-50 2.8 os. ( https://www.dpreview.com/forums/post/59718249 ). The kit zoom has produced the biggest RAW file I have seen from the SD1, it should mean a lot of detail in the picture. Both lenses are capable of resolving details a single pixel wide. These modern zooms are spectacular.

The 105 macro has a lot of lenses inside (the Pentax M 100/4 only had 5 in 3 groups, an improved Taylor triplet https://en.wikipedia.org/wiki/Cooke_triplet , like Zeiss Tessar) , to me it seems that the 105 is designed like a Zoom optimized and fixed on a single focal length, son of a computer code. All classical lens design of the past are obsolete....

 George_pix's gear list:George_pix's gear list
Sigma SD1 Merrill Sigma 10-20mm F4-5.6 EX DC HSM Sigma 17-50mm F2.8 EX DC OS HSM Sigma 105mm F2.8 EX DG OS HSM
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