And it's not about "blaming". These cooperations sometimes are very obvious (Leica/Panasonic, Zeiss/Sony/Cosina). Less obvious is the price difference, especially if an exisiting (and costly) OS was removed. Either way, replacement materials have to stand in and someone has to assemble small batches, which usually costs money as well.
02-28-2018, 02:17 PM
(This post was last modified: 02-28-2018, 02:20 PM by Kunzite.)
I'd not go that far (as intentionally and without provocation antagonizing people goes by another name, and Klaus isn't that kind of person). :p
Getting back to Pentax: Klaus, is there any chance of restarting Pentax reviews - after the new lenses will be on the market?
02-28-2018, 07:05 PM
(This post was last modified: 02-28-2018, 07:33 PM by goran h.)
Pentax developed the optics for DA* 50-135mm f/2.8 SDM and DA* 16-50mm f/2.8 SDM. The 12-24mm f/4 is a Tokina design. Can´t remember who designed the 10-17mm f/3.5-4.5 Fisheye.
The macro lenses 100/f2.8 and 35/f2.8 are Pentax designs but also rebadged by Tokina.
The 10-17mm was/is a Pentax. Pentax had an earlier FF fisheye zoom in the film era (1995), a 17-28mm. The 10-17mm was a direct descendant of that lens.
I can say that many of the optical characteristics of Tokina, mainly monstrous chromatic aberrations of the 4 pixel wide variety, which is one of Tokina's traits, is to be found in the Pentax DA*16-50mm F2.8 SDM lens as well as the Tokina version.
Pentax's lenses as a rule control CAs nicely and they use their own lens coatings, therefore I conclude the lens to be a Tokina design, it has none of the signature of a Pentax designer and all the signs of Tokina's.
The DA*50-135mm F2.8 is Pentax's own and is a far better lens.
Pentax would do better with a co-operation with Tamron who's mechanical construction, USD motors, optics, VC and above all their coatings are right up to the minute........
..........only the last Tokina lenses have taken on board any of that......with their clunky push-pull AF ring......but most of all their very poor coatings causing all sorts of flare...........really in terms of full spec lenses.......Tokina are pretty far behind the pack.........I've also heard stories about lack of service...........
(02-28-2018, 09:38 PM)Kunzite Wrote: @thxbb12:
You already have the answer: my statement was correct, and your assumption wasn't. I don't get why, when the same design is shared between Pentax and Tokina, people would assume it's Tokina's... it's not like Tokina demonstrated a higher capability of launching new lenses.
This page is an attempt to associate Pentax-designed lenses with their designers:
The reason for the assumption is simple - the Tokina/Tamron lenses were usually (always?) released earlier than the Pentax variant.
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