Why no 40mm pancake (or similar)?

Started Feb 9, 2018 | Questions thread
Eric Nepean
Eric Nepean Veteran Member • Posts: 4,251
Re: Conclusion: I seem to be the only one ;-)
1

arbux wrote:

TomFid wrote:

alex2b wrote:

Clear.

You nearly all agree that I should not want a pancake, as the multiple suggestions to just be happy with non-pancakes seem to imply. But I am not happy that there is no pancake 35-45mm pancake, as I made clear (why would I request for one...). At the same time I understand that lenses are usually not developed for small minorities.

I am still not convinced it can't be done, but if Panasonic and Olympus do their market research well, then they obviously have concluded already that there are far more of you than of me ;-/ .

Still, it's a pity; the compact m4/3 system would really benefit from this IMO.

The one serious analysis above suggests that it might be hard to do, not that you shouldn't want one.

Serious analysis of who? Professional lens designer?

Nikon makes 300mm f4 that for ff that is half the weight and 2/3 the lenght of olympus 300mm f4. What does this serious analyst says about that?

You're clearly no kind of an expert, or you would have mentioned that the Nikon 300mmF4 contains a phase fresnal lens. This is the first, and so far only, lens in Nikon's portfolio with such an optical element. And then you would also be aware that without such a lens the limitations of the ray diagram shown by David 247 on this thread are in fact limitations unless the designer uses a phase fresnal lens.

I hace tiny and extremly capable 30mm f2 on samsung nx i.e. covering aps-c (or pancake fisheye 10mm 3.5, that actually delivers quality)

I have the tiny and extremely capable 12-32, 20mm F1.7 and 14-42PZ. And also the small and capable Laowa 7.5mm F2, 15/1.7 and Oly 25/1.8

Lack of really smal lenses for m43 is ridiculous

That lack exists in your mind only. As you can see by this link , there are at least M43 camera lens combinations which have a smaller front to back depth than the NX500+30mm F/2.

The Panasonic 12-32, 14/2.5, 14-42Pz, 20mm F1.7, and the Olympus 17mmF2.8, 14-42EZ are all good quality pancake lenses, and there's another half dozen or so that are small, including the Panny 42.5 /1.7 and the Oly 45mm/1.8

, as are attempts to justify it by internet experts. If anything, this is next gap to address by m43 manufacturers.

It seems that Nikon hasn't yet developed another lens product with a Phase Fresnal optical element. This might have something with the fact that special Nikon SW is required is required to remove some of the strange optical effects due to the Phase Fresnel element, or perhaps  manufacturing or design issues.

I agree that it's a pity. I'd love to see more compact f2 to 2.8 options. I can't fathom why there's so much enthusiasm for spectacularly large/expensive f1.2 lenses, but not for more innovative ideas.

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Eric

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