Pentax pancake lens reign ending?

[felixcat8888]

That was also the reason i sold the DA40mm F2.8 and bought the FA43mm F1.9

 

[le petit prince]

Personally the only thing going for the pancake lenses is the compact size period. In my book, if one wants a prime setup, large maximum apertures is the way to go, that's probably why for me, after getting over the euphoria of having a pancake lens like the DA 40mm and M 40mm, I began to be more conscious about the f/2.8 limitation and promptly dumped it. I do realize some of you may feel it's the best thing since sliced bread, but it just got no love from me... sorry. :sweat:

Conversely, for me, their extremely compact size is the DA Limiteds' key attraction for me.

My all primes set are the pancakes DA21, DA70, M50, FA43 and the heaviest, fattest of all - DA35.

For a bare basics set, I can actually do without the M50 and DA35, strictly speaking.. but the M50 is so cheap and such a good-looker, and the DA35 has the useful marco/all-purpose function.

But yes, I did feel the lack of speed and that's why I got the FA43 (besides its other qualities).

 

[Zenten]

...... well if a pancake gets too fat and thick then we might just call it a muffin .......... :think:

 

[felixcat8888]

...... well if a pancake gets too fat and thick then we might just call it a muffin .......... :think:

OK, so we have the following "muffins": :think:
DA35
DA*55


:devil:

 

[scorpioh]

There's the FA31 and FA77 hamburgers too.

 

[CYRN]

Hi Cyrn.. Welcome back again!
I am not sure if its true but there is a limit as to how much you can bend the light without distortion, hence if the depth of the lens is too shallow, you can't squeeze in the complex optics assembly to achieve a fast ratio. At least that is what I thought. Do you have other literature that says otherwise?

not quite 1.4 (yet).. but it might be considered "prove of concept" such designs can be possible... especially squeezing 6 elements into a pancake design.

http://www.cosina.co.jp/seihin/voigt/v-lens/sl2/40sl2/index.html


Adding AF should not be much of an issue if using USM technology. The "motor" is just 2 rings as linked.

http://www.photoscene.com/sw/tour/inside.htm