Can Pentax make A Decent Lens? Ricoh have not fixed QC issues...

Started May 18, 2014 | Discussions thread
Petroglyph
Petroglyph Veteran Member • Posts: 5,878
Re: Please use better experiment protocol

jf_tea wrote:

shallow DOF at f/1.8

subject distance at left vs. right is significantly different.

Please use better experiment protocol.

Good observation.  I'd have to stick up some calibration charts to tell things like that and that is such tedious work I won't do it unless the lens has to be well centred, such as, for landscape or architecture.  So mid and long telephoto I don't worry unless an OOC lens is obvious in the field.  A couple of lenses from Pentax I've owned have been notably good and there was one lemon that I sold off a while back.  I don't tend to own a lot of OEM lenses.

Cheers.

 Petroglyph's gear list:Petroglyph's gear list
Sony Alpha a7R II Pentax K-1 Pentax smc FA 77mm 1.8 Limited Sony 16-35mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* Sony 50mm F2.8 Macro +6 more
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