Originally posted by pinholecam 1. There is a good number of Sigma lenses available for use on a Pentax.
The 12-24; 24/1.8; 28/1.8; 35/1.4, 50/1.4, etc..
2. If its to attract new users from changing from other systems to Pentax, and that means using a 3rd party lens like a Sigma, then why not just buy a Sigma for the user's current system?
3. Pentax is unique not for some macho big heavy encumbering lens setup. The smallish primes do provide a uniqueness to the Pentax line
In fact, this and the nice full featured camera bodies with good interface should be emphasized as the selling points.
Yea you got the idea.
however, I don't think we will see a lot of light weight lenses for the new FF. Judging from the size of the new 70-200 which is similar in size, if not a tiny bit bigger, than my Nikon 70-200mm f2.8 VRII. When you add ring motors or linear drives your making the lens bigger. to get rid of all the flare, fringing, coma, etc. also makes them bigger. I think this is one reason why we still see screw drive in a lot of lenses.
It's gonna take a really revolutionary camera with a complete system to support it to get the Canon and Nikon pro's to swap. Canon and Nikon have substantially better flash systems, not to mention incredible support from the strobe manufactures. The way I see it.... we need:
A camera that exceeds Nikon D810/Canon 5Ds capabilities in image quality. 36mp is fine, but the Dynamic range and high-iso noise needs to be better than the other two.
A trio of pro-grade f2.8 zooms covering 16-200mm that can deliver AF speed and accuracy, not to mention overall image quality that matches or exceeds the other two
A wireless flash system with accurate TTL and HSS availability with a standard native sync speed of at least 1/250". not to mention the ability to fire the hot shoe over the native sync speed (even if you get banding)
SUPPORT from all three main third party lens manufactures
SUPPORT from strobe companies like Elinchrome, Profoto, or similar that can provide an HSS strobe solution. Priolite is not distributed widely enough for this.
The third party support is the big one. If pro's who are using their Nikon/Canon cameras with the Sigma Art series, and love those lenses don't see alternatives on Pentax' then they won't swap. If they are strobists and they are used to TTL/HSS of lets say a Profoto B1, it will be harder for them to swap. Just as examples. Why do I focus on these items? Because Wedding, portrait, and Commercial photographers are a HUGE professional market, arguably bigger than any other field like pro landscape, travel, and journalists. Those people always want 3 things: the trio of zooms, fast reliable auto focus, and a reliable TTL flash system.