Originally posted by 65535 i want ff so my fa limiteds are the "right" focal length.
clear enough?
The focal length of the lens is an intrinsic characteristic of the optic -- it has nothing to do with sensor size. A 200mm lens is a 200mm lens -- whether it's for large format, medium format, 35mm, APS-C, or 1/2" -- it's just a 200mm lens.
Originally posted by Angevinn I don't see why APS-C DA lens owners are so against a FF DSLR.
Because we're not stupid enough to expect our camera's manufacturer to go into bankruptcy trying to produce 4 lens lines.
We had a four- or five-post discussion in the K-7 mega thread about this. I mentioned that technological advances in sensor design are going to make the difference between APS-C and full-frame completely irrelevant.
I mentioned one of my professors has developed a CMOS image pick-up that can detect all wavelengths of electromagnetic radiation from a single photosite. Instead of transmitting just an intensity, it will transmit variable spectrum data on frequencies and intensities. So, the RGB bayer array will be a thing of the past.
If Samsung gets its hands on that technology, it would blow everyone else out of the water. There's no way a full-frame sensor or anything else could stand up against that. Period.
Sony is experimenting with a redesign of their CMOS sensor to allow light to enter through the rear of the image sensor -- to bypass all the circuit traces and components. This makes the sensor two orders of magnitude brighter than the equivalent-sized conventional sensor.
Fuji has some new stuff in the works, too. For CCD, which may make a comeback.
So, there's a lot of interesting things going on.
And yes, any technology developed for APS-C can be applied to full-frame, but...
This reminds me of the super computer vs desktop computer battle. Mainframes were all built with a LOT of processors (hundreds...). So, they didn't need to be particularly fast or anything; they just needed a lot of them.
Desktop PCs were built with processors that got faster and faster and faster.
Super computer proponents said (and are correct in thinking) "It doesn't matter; if you build a faster processor, we'll just put 100 of them in our computer, and we'll still win"
Or, compare an old gas-guzzling 1960s big-block V8 to a a tiny-ass 1.8 L I-4 BPD-T engine out of a GTI-R -- it pumps out 206 HP, which is astonishing for an engine of its size.
Sure, if the technology from that engine were scaled up into an 8-cylinder design, of course it would put out more horsepower.
Full-frame sensors are like that. They're lazy. They're big and bulky and use lots of power. They rely on sheer size instead of ingenuity. They require huge lenses, huge bodies, and huge pocketbooks.
APS-C sensors are crafty. They're noticeably smaller -- smaller lenses, smaller bodies (Samsung NX) and less expensive. New technology is easier to apply to APS-C sensors (because of the smaller sensor size), and each year, they get better and better.
Smaller is definitely the new black this season.
Some day -- soon -- we'll all be laughing at the full-frame cameras of yesteryear. The big dinosaurs. We'll tell our kids that cameras used to have to be big if you wanted good image quality.
Just like talking to my dad (who's worked in broadcast video for 40 years) about the old 1 1/4 " Image Orthocon camera tubes they used in all the studio cameras.
Why don't they use sensors that big in current studio cameras? Wouldn't they get better image quality? Sure, but who cares? Their 2/3" sensors look good enough. And the benefits from going any larger would become a case of diminishing returns.