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2.8/35 Distagon AEJ & MMJ Differences?
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PostPosted: Wed Dec 29, 2010 6:24 pm    Post subject: 2.8/35 Distagon AEJ & MMJ Differences? Reply with quote

2.8/35 Distagon AEJ & MMJ Differences?
Anyone can tell me something?
Thanks.


PostPosted: Wed Dec 29, 2010 9:15 pm    Post subject: Re: 2.8/35 Distagon AEJ & MMJ Differences? Reply with quote

francotirador wrote:
2.8/35 Distagon AEJ & MMJ Differences?
Anyone can tell me something?
Thanks.



I've heard the MM version supports auto iris.

The most significant difference between AE and MM for me: MM's are newer7/ have later serial numbers and have a better coating. The iris form when stopped down is almost circular on MM's while on AE's it is more like an sawtooth or ninja star.


PostPosted: Wed Dec 29, 2010 10:02 pm    Post subject: Reply with quote

@agent_cooper: you're right, that holds in general, but some lenses were optically improved in MM version (D28/2.8 for instance, though I'd really like to know if the difference is significant, there aren't any sample comparisons on the Net).


PostPosted: Wed Dec 29, 2010 10:13 pm    Post subject: Reply with quote

symphonic wrote:
@agent_cooper: you're right, that holds in general, but some lenses were optically improved in MM version (D28/2.8 for instance, though I'd really like to know if the difference is significant, there aren't any sample comparisons on the Net).


In case of D28/2.8 the difference in performance is about 1 f/stop (meaning the MM lens reaches its top performance about one stop earlier than the AE version). AE Distagon 28/2.8 is roughly equivalent to Yashica ML 28/2.8, while the MM version is visibly sharper.


PostPosted: Wed Dec 29, 2010 10:40 pm    Post subject: Reply with quote

I've had an AE and MM (which I kept) and haven't noticed a difference. Certainly not like with the 28mm version which had sharper corners as an MM lens.


PostPosted: Wed Dec 29, 2010 11:11 pm    Post subject: Reply with quote

ManualFocus-G wrote:
I've had an AE and MM (which I kept) and haven't noticed a difference. Certainly not like with the 28mm version which had sharper corners as an MM lens.


Thanks, I am interested because I bought from Orio, 2.8/35mm AEJ version.
It's just curiosity


PostPosted: Wed Dec 29, 2010 11:43 pm    Post subject: Reply with quote

I have had both versions and I could never find any optical difference.

_


PostPosted: Thu Dec 30, 2010 11:04 am    Post subject: Reply with quote

I must distinguish between them clearly, since Leitax mount replacement (for Nikon DSLR users) only applicable on MM version


PostPosted: Thu Dec 30, 2010 11:06 am    Post subject: Reply with quote

kopimorning wrote:
I must distinguish between them clearly, since Leitax mount replacement (for Nikon DSLR users) only applicable on MM version


MM version has f22 in green on the aperture scale.