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Anonymous
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what is the difference between a digital and a non digital len. apparently this lens is not digital, what would the difference be between this lens and its digital counterpart?

http://www.amazon.com/Canon-75-300mm-4-5-6-Telephoto-Cameras/dp/B00004THCZ
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>> Anonymous
"digital lens" usually means EF-S for Canon or DX for Nikon. They project a smaller image for the smaller sensor. Regular lenses will work on digital or film cameras. But digital lenses will only work on digital cameras with crop/smaller sensors. Or maybe those weird advantix SLRs, I dunno.
>> Anonymous
would say a canon xsi/xti be able to control the focus/fstop of the lens automatically with the non digital lens that was linked?
>> Anonymous
>>246074
Should probably call them crop or APS-C lenses and not "digital lenses."

Also yes, if the lens supports those functions (and pretty much all new lenses today do.) I'd stick with full frame lenses unless you have a specific reason for going with the crop lenses, like wanting lighter weight.
>> Anonymous
full frame would be the EF series lens like the one linked?
>> Butterfly !xlgRMYva6s
isnt Digital normally used to denote lenses that are designed to work with digital bodies and cut down on reflection and other crap for them but have no effect on their film performance (or no inteded effect).

Im sure thats what sigma uses it for.
>> Anonymous
"Digital lens" is a term that pisses me the fuck off. Come on guys, ever hear a 5D or D700? Digital lenses are lenses that have a crop factor over 35mm styled lenses, so they work on crop sensors letting you have shit like 17-55 at F/2.8. Some will work on full frame or film with a big black vignette, and some won't. (The EF-S series goes too far into the body, so if you mount one on, say, a 1D, the mirror will thwack it)
Going the other way is no problem. I've only got one lens that wouldn't work on FF, and 3 that would. Non-digital lenses (FFS, I hate that term!!) allow the cropped sensor to catch the sweet spot of the lens. Less vignetting, sharper, etc.
If you wanted a version of the 75-300 for a Rebel or xxD camera, you'd prolly be looking at the 55-250.
>> Anonymous
>>246095
The crop lenses are still impacted by crop factor, retard.
>> Anonymous
Canon EF-S has small image circle, and optimised coatings for digital sensors. Allows it to use less glass to get the job done.

The other brands use it a bit differently:
Tamron: Di (Digitally Integrated) Lenses
Lenses designed for superior use with digital SLR cameras and conventional cameras.
However: Di II Lenses
Lenses designed for digital SLR cameras with smaller imagers

Sigma: DG Lens
The most suitable lenses for 35mm film single-lens reflex cameras, as well as for digital SLR cameras.

Sigma again: DC Lens
These are special lenses designed so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus!

So thar you have it :D
>> Anonymous
lol @ people buying crop lenses

enjoy your $1000 paper weights when everyone will be rocking full frame next year