Messages

106

Lenses / Re: 70-300L & More

« on: December 19, 2010, 08:07:40 AM »

http://www.photozone.de/canon-eos/571-canon70300f456islapsc

Seems a good match for APS-C, although still a few bucks too expensive IMHO.

107

EOS Bodies / Re: Canon EOS 7D Mark II - sensor

« on: November 24, 2010, 09:02:22 AM »

It's a completely different thing with the (possible) merge of the 1-series since APS-H never was a dedicated system. There aren't any APS-H-specific lenses or stuff like that and technically it's just FF cameras with smaller sensors. The reason why APS-H sensors even exist is because it was the largest sensor size Canon could manifacture in one piece (Source: Canon's FF whitepaper). FF sensors require(d) combining a sensor from multiple parts, which is way more expensive to do.

And given the pixel density of the current 1D, a full-frame 1D5 would "only" need to have ~27mp to offer an APS-H "crop mode" at the exact same resolution of the 1D4.

On the other hand, Canon build a whole system around APS-C, including specialized lenses etc. and the 7D is it's "pro APS-C model".
If there is ever a "FF 7D", it will most likely be called 2D/3D/4D, everything else doesn't make sense in Canon's naming scheme.

108

Lenses / Re: New EF-S Lenses ?

« on: November 21, 2010, 10:15:54 PM »

Given the 17-85mm EF-S was effectively replaced in 2009 by the 15-85mm EF-S and the chatter on here about new lenses being needed for the next big step up in sensor densities, I'm wondering if the quite old by EF-S standards 10-22mm and 17-55mm EF-S lenses are perhaps getting to a stage where a refresh is required.

Don't think so. The 17-85 got bashed for it's bad wide-angle performance right from the start and things didn't get any better when the 18-55 IS came out, being noticeably sharper (again, at wider angles that is).

its looking a bit out of "style"

If style was anything to go by: Why didn't they update the styling on all the old late-80s/early-90s lenses they're still selling?

Given the market share of the crop body cameras over the full frames an the push of crop bodies upmarket (7D), I'd suspect the crop specific premium lenses sell in far greater numbers than like-for-like lenses in the L ranges.

I'd love to see EF-S lenses with L-style build quality (including weather sealing). Don't care if they would call them L but anyway, I don't think it's going to happen. Somehow Canon thinks it's not a good idea.

I'm also thinking that although the current lenses may well work fine for the current 18mp crop models, they may well start to show a few weaknesses perhaps not with the next step up, but maybe the step after that, thus getting new glass out over the next couple of years would set the stall out for new crop bodies in 2013 onwards, which by recent jumps could see crops at 25-30mp by 2013/14

Going from 18 to 25mp would actually not be a big jump compared to previous generations (slightly more than going from 6mp to 8mp, relatively speaking). I don't believe they will go much further from there because even at 18mp, diffraction already starts to kick in at around f/8. Unless we see some real breakthroughs in sensor tech, I think APS-C sensors will probably top out around 24mp in the medium term, even given the megapixel race still continues for a while.

However, I have a glimmer of hope that it's slowly changing into an image quality race.

109

Lenses / Re: Perfect first EF-S "L"

« on: September 29, 2010, 04:24:41 PM »

EF-S 15-55 f/2.0 IS USM with weather sealing. That would be fantastic but probably unrealistic.

Don't care if they call it "L" as long as they build it like one.