Pentax A28mm f2.8 vs. S.M.C.Tak 28mm f3.5

[kuuan]

Just received the S.M.C. Takumar 28mm f3.5, wanted one even though I have a A28mm f2.8 since I wanted a 28+35+50+105+135 Takumar M42 set.

Hasn't someone ' Orio?, asked in the recent 28mm thread of Lucis Pictore even asked for this comparison?

Anyway, here some charts
all taken RAW on Pentax *istDs, converted in Lightroom including default settings of LR for this camera which are applied automatically when loading, cropped in Photoshop, for the 100% crops additional auto contrast applied in Photoshop


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I do not know how much this kind of comparison tells you..
I also have takes of the following three scenes, taken with both lenses at f3.5 and f8 and f2.8 on the A lens

A 28mm f8:


S.M.C.Tak 28mm f8:


S.M.C.Tak 28mm f8 focus at infinite:


of this last photo I have 2 sets, one with focus at infinity and another with focus at 3 meter.

If you interested in any of these photos, 100% crops or also original sizes, please tell me what you want, what could give you the best information, or which kind of different photo I better shoot.

thank you,
Andreas

[Nesster]

Interesting, as at some point I will have that Takumar, and I have the A lens already.

Despite the auto-contrast you do (this will hide any low contrast issues) I still see one of the characteristics of the A - the tones seem lighter or perhaps less concentrated than with the Tak. I've grown to appreciate this characteristic, as to me the lens is plain spoken and direct as a result. No drama queen!

The Takumar is typically solid saturated and very resolute, a family trait.

Two very nice lenses, and your samples simply make my determination to own a sample of the Takumar all the more solid. Thanks

[LucisPictor]

Thanks for this interesting comparison! (And congratulations to your new lens!)

[kuuan]

in case anybody wants to see comparison shots of the three 'landscape' photos shown please help me and tell me:

is there any of which you would like to see 100% crops? or an original sizes? If so please tell me.

of the three photos shown I have 5 takes each, a f3.5 and a f8 of each lens + a f2.8 take of the A lens,
of the last photo there is a set with focus at infinity, another at 3 meter

thank you,
Andreas

[estudleon]

The "A" corners seem to be more sharp, but the inverse may show in the center. I like "K" overall image. Be luck.

[patrickh]

Great comparison set. Thanks. I like the 28/3.5 for value - it seems to go fairly cheaply


patrickh

[kuuan]

[padiej]

The "little old" Pentax Ist*D makes a good work, it was my first DSLR.
The markets in japan are so clean, it´s a very clean land, I see. The 28mm/3,5 is in my near, I should get one in 10 days, then I will add your test.
greetings Peter

[kuuan]

The S.M.C. Takumar is a tad wider than the A-28, see the samples reduced to 25%size:

the S.M.C. Tak at f8:


the A28mm at f8:


once again:
the S.M.C. Tak at f8:


the A28mm at f8:


and here 100% crops compared
left lower corner of the last photo seen here:


and the top left corner of the last photo of my original post:


if from these samples anybody can tell, I'd be glad to know your opinion:
how would you compare their image quality?
which one would you prefer for which kind of shots?

regards,
Andreas

[padiej]

Hallo Andi!

TAK: more Contrast, more Colour
A 28: more Sharpness

the TAK brings more life - the A needs a couour- softwarepush

both are good, the A28 with finetuning on the cam to get more contrast is perhaps a little bit better

regards Peter

[estudleon]

And the little front element of the "A", could be a advantage in the flare question, no?

[kuuan]

[estudleon]

I'm talking about the the front lens, that is smaller in the "A" and, with this, the lens is minor prone to flare. Do you see the same?

[kuuan]

[padiej]

Today I tested

Asahi Pentax Takumar 28mm /3,5 and

Pentacon electric 29mm /2,8

the Pentacon seems decentriert - left is sharp, right is unsharp
the Takumar is better, always sharp, very clean resolution

the results:






regards Peter

[Nesster]

Another interesting comparison, you do these well! I especially like the last one where you join two halves - that's even artistic!

[estudleon]

padiej
I had have the same problem especific with the 29/2,8 pentacons.
I tried to buy 6 or 7 of them but I can't find one without this problem. Good luck (better than mine, with this lens)

[estudleon]

Ah.. Generally is the last front element, the nearest the diaphragm.

[estudleon]

I don't have pentax lenses, but because yours photos I bought a super tak 3,5/28

[kuuan]

[simbon4o]

М 28 2.8 v2(A28 2.8 without the A) and DA 16-45 4.0, ACR6 sharpness - 0 100% crops[/img]