How come no other cheapies like Nifty Fifty?

Started Feb 14, 2012 | Discussions thread
Peter 13 Veteran Member • Posts: 8,301
Re: How come no other cheapies like Nifty Fifty?

Shorthand wrote:

As far as I can tell, EF-S doesn't buy very much extra back-focus distance behind the flange. Look at how little EF-S lenses actually protrude behind the flange - its 7-8 mm, no more.

I think a 40mm EF-S double-gaussian would be possible, but probably not a 35mm (otherwise I think Canon would have done it already).

Nikon did it. The 35/1.8 design is modified on the front but the back looks double Gauss to me. On the other hand, I am not familiar with the Nikon DX mount:

Nikkor 35/1.8 (crop)

Canon 50/1.8:

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