What's the equivalent focus length in APS-C frame?
1387464
Sony NEX/alpha cameras are 1.5x crop factor so you multiply 20mm x 1.5 factor to get a 30mm full frame (35mm film) equivalent lens which is a medium wife angle lens. Good for general street photography.
2192685
If you don't want to have both on the lens, then I would use just the full frame hood. There's no rule either way. I think the APS-C adapter looks a little flimsy on its own. The ability to reduce stray light and therefore flares will be diminished without the extension on crop sensors. But I doubt you'll see much of a difference.
1322746
No. you have to use LA-EA3 and 4, they are for A7 and A7r. If you use this (LA-EA1 and 2, for APS-C) you would get smaller images.
2118674
As long as you are not shooting full frame this would be a great lens for your purposes but remember, it is for APS-C only.
296758
This model is APS-C sensor size ,it's not a full frame...is a little smaller sensor you have to use 1.5x factor on the lens to know the exact focal length. The price of the camera will tell you if its full frame or not because full frame are so expensive...then look for the spec. On the camera box.
2259183
Hello, this would be the full frame equivalent of an 85mm 1.2. The focal length does multiply but the aperture would not. Hope that helps.
795417
Hi Alex, the focal length will still be 24-70mm. It will only change when mounted on á series camera with APS-C type sensors, the actual angle of view will be equal to the angle obtained at a focal length approx. 1.5 times longer than stated. -Vincent
1696781
I've found this lens to be very sharp, very light, and am very happy with it. Do remember that on the APS-C this is a "normal" lens. If that fits your variety of uses, then it should be just fine. With the bonus of macro.
2271203
The t3i has a Canon aps-c sized sensor, which carries a crop factor relative to full frame of 1.6. That means that this 35mm lens would have a field of view on your camera equivalent to a 56mm lens on full frame (35 x 1.6 = 56). With a goal of a 50mm field of view on aps-c, you would need a 31mm lens - this focal length isn't common, but Sigma has a decently rated 30/1.4 available, and canon offers a couple of lenses at the 28mm focal length (I know of a 1.8 and a 2.8IS cousin to this 35mm off the top of my head). There are other aspects of lens physics that keep the equivalence due to crop factors from being so cut and dried as 56mm on aps-c is equal to 35mm on FF, such as perspective compression and bokeh, but by strictly field of view this equivalence would hold.
1908361
works great on both! I have both a full frame and DX. On a DX camera the focal length is approximately 127mm
1107062
The 18-55mm SAM II is made for APS-C sensors, so you will get a sensor crop (APS-C area on the full frame A7 at the correct focal length) or a lot of vignetting if you use the whole sensor. The 55-200mm should behave the same way. The 50mm 1.8 is made for APS-C. The 1.4 is made for full frame and will send light to the whole sensor.
151149
Full frame lenses work fine on APS cameras - but not the other way around. On APS-C the lens will have 1.5 crop compared to the field of view you have with fullframe. The good news is that you'll future-proofed should you go to full frame in the future AND it's an awesome lens!
1077782
according to fuji specs super macro zoom will focus at 1 cm. I have not tried this yet
1064913
Most of my contacts have been around 3'+ but I haven't had any issues. It's auto focus but I think you can zoom in/out after you transfer it to a computer.
1632326
i've found 1 1/2" is the "best". That close, always manual focus if possible.
472290
What I know is what they do in practice. The focus is fixed, and I have seen clear video as close as two feet, and as far as 40 feet. What I do not know are the exact specs.
1915312
Download the user manual, there is a chart with that info. I have 92" (diagonal) and am at 14'2" without adjusting the focus and so on. You'd need to be back some .... Mines a 3010, so YRMV.... It's worth the effort to get it "just right"....