All Forum Comments
Comment by Algernon posted on EOS 600D and Pentax K-r image comparison at 10/03/2011 - 18:29
Against the K-5 it's the same?
The Exif according to Photome does not recognise the lens on the Pentax, so I suspect it's a 50mm f/2.8 Sigma
Comment by Algernon posted on EOS 600D and Pentax K-r image comparison at 10/03/2011 - 18:08
Comment by Algernon posted on Are they worth the cost? at 10/03/2011 - 11:28
Well some would have at least been made such as the Kodak Instamatic's That's a marketing term if ever I heard one "Instamatic" which means it isn't Instant. I suppose they made it from Plastic to keep the Accountants Happy if they hadn't had such powerful Marketing and Accounting they wouldn't be where they are today??? Where are they today apart from marketing cheap batteries :
Kodak did let the Engineers run wild once and they made the best lenses ever made regardless of cost the Kodak Ektars of the 50's and 60's much better than anything the Germans could make
Comment by Algernon posted on Pentax prices at Focus NEC show & the Pentax stand... at 09/03/2011 - 20:35
Comment by Algernon posted on Improving on DAL 55-300 at 09/03/2011 - 14:11
There are probably 2 types of 6x6 lenses, some not too sharp and some that are exceptional. Generally lenses are designed for the highest MTF wide open, sometimes they may just use an old design such as Tessar.
My Bronica S2A 75mm Nikkor lens tested out at a maximum of 140lpmm the same as my Pentax A 50mm f/1.7. The lens on my Koni-Omega 6x7 went right of the scale
Some Koni-Omega scans (not mine). Scroll down to the larger pics lower down the page.
The extra 1 Zone on Ansel Adams Zone scale for 6x4.5 and greater comes from the film/film development and not the lens.
Comment by Algernon posted on SMC PENTAX-A 645 ZOOM 4.5 45~85mm with *ist D at 09/03/2011 - 14:05
Comment by Algernon posted on Waitrose sausages at 09/03/2011 - 13:56
Leave the job to the boys in Engineering
As for Accountants :arrow:
Comment by Algernon posted on Pentax prices at Focus NEC show & the Pentax stand... at 09/03/2011 - 13:51
Comment by Algernon posted on Has anyone successfully sold a CZJ Sonnar 135 on eBay? at 09/03/2011 - 10:49
so he should know his sausages
Comment by Algernon posted on Waitrose sausages at 09/03/2011 - 10:31


It's quite good, isn't it? Holds up well against the K5 IQ wise, and noticeably outresolves the Kr.
The trouble is Pentax don't really have a standard lens suitable to do this kind of test, unless the 50mm f/2.8 Macro is still available? The 50mm FA f/1.4 isn't the sharpest chisel in the toolbox
The test should also be done at f/5.6 these kind of lenses (apart from the macro fall off at f/8 )