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01-08-2012, 07:11 AM   #1
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A28mm on DSLR = FA43? impressive on me

So I got a FA43 recently, I was impressive with the angle of view.
As it is designed, when you look through the viewfinder, it looks the same as how it look through my naked eyes (with my glasses)
Of course I put it on 35mm film format on my K1000.

The next day, I grabbed my DSLR and got the rarely used A28/2.8.
It look almost the same as the FA43 on film camera.

A28mm on APSC / FA43 on film
Horizontal angle of view: 45.53 / 45 degrees
Equivalent focal length: 42.89mm / 43mm

The result is impressive to me and now I want a A 28/2 for my LBA.

Any thought??


BTW, any alternative for the 28mm/f2 for K/M42 mount?
A28/2 is hard to find.


Last edited by MegaPower; 01-08-2012 at 07:33 AM.
01-08-2012, 07:35 AM   #2
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QuoteOriginally posted by MegaPower Quote

BTW, any alternative for the 28mm/f2 for K/M42 mount?
A28/2 is hard to find.
You can get a Vivitar / Kiron 28/2 for about $150
01-08-2012, 08:25 AM   #3
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QuoteOriginally posted by ducdao Quote
You can get a Vivitar / Kiron 28/2 for about $150
any comment on this lens?
01-08-2012, 08:36 AM   #4
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QuoteOriginally posted by MegaPower Quote
any comment on this lens?
Have a look at the reviews here Kiron 28mm F2 MC Lens Reviews - Miscellaneous Lenses - Pentax Lens Review Database

I have the Vivitar version and I only used it a couple times. At f2 it's very soft but usable. Pretty good from f4.

01-08-2012, 09:15 AM   #5
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Sigma 30 f/1.4 also comes close, i wonder how they compare to each other.
01-08-2012, 10:05 AM   #6
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QuoteOriginally posted by MegaPower Quote
any comment on this lens?
I have a Kiron 28mm f/2.0. It's a pretty sharp lens, sharper than any of my zooms and my Cosina A 28mm f/2.8, not quite as sharp as my FA 35. Images sometimes need colour correction due to a blue cast. CA, distortion and vignetting are very low. I love the bokeh, not everyone agrees. Here's an example, wide open:



I don't use the Kiron much. I don't mind manual focus lenses, but I prefer lenses with auto aperture. I used it for a photo challenge here:
audiobomber's Album: Single in November - PentaxForums.com

Last edited by audiobomber; 01-08-2012 at 10:14 AM.
01-08-2012, 10:56 AM   #7
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QuoteOriginally posted by MegaPower Quote
The result is impressive to me and now I want a A 28/2 for my LBA.

Any thought?.
I had the same reaction when I took a look at things through a 28mm. 28mm is a perfect "normal" lens for the APS-C sensor (just as 43mm is near perfect for a 35mm camera). If you can afford it, I highly recommend the Contax-Zeiss Distagon T* 28mm f2.8 reviewed in this thread. I judged it equal or superior to the FA31 at a fraction of the price. Right now there are several for sale on Ebay, with the best deal apparently this mint version in England for $352. If you prefer to buy from an established company, KEH is selling this one for $499 (but it isn't mint).
01-08-2012, 11:11 AM   #8
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There are many many 28/2.8s. I like my F28/2.8 better than anything else I've tried.

For faster lenses, there are a few Vivitar 28/2 variations: mounts from M42 to KA, Tokina, Kiron or Komine, regular (0.3m) or close-focus, some coating variations. I did not like the Tokina (Series 1) version much - not very sharp. I like my K12 Kiron version. The close-focus version is supposed to be excellent.

Sigma has a 28/1.8 that you can buy new. I have the previous version of this lens and it's excellent but large. The newer lens is even bigger. The negatives are typical Sigma: coatings maybe a step behind Pentax for flare, maybe build quality. The 28mm Sigmas don't have that strong center sharpness/much softer corners that their 30/1.4 has.

01-08-2012, 01:28 PM   #9
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As mentioned, 43mm is normal on FF and 28-30 is normal on APS-C. (30mm for nominal APS-C; 28mm for my K20D sensor.) You could get a WOW from a DA31Ltd. Or you could spend a lot less on any of many vintage 28s. Other than Fifties, my favorite MF prime (out of ~200) is a Vivitar-Komine 28/2 CFWA. Getting that capped-off a good week: a Vivitar-Kiron 28/2.5, then a Tamron BBAR 28/2.5, then the CFWA (Close-Focus Wide-Angel), all very cheap. But I also get very good performance from various cheap 28/2.8s: Chinon, Makinon, Tokina, Tomioka, even a Toyo / 5 Star. Even my M28/2.8 ain't bad. But the A28 and F28 (and the 31Ltd) are the acknowledged stars here. Maybe I'll get lucky...
01-08-2012, 02:48 PM   #10
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Few last shots with the Vivitar 28/2 CF wide open. Pretty fun with CF ability.

CA is pretty strong as you can see in the second picture.



01-08-2012, 02:56 PM   #11
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I've noticed B&W always works better with these vintage lenses.

01-08-2012, 06:59 PM   #12
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I own an M28/2, and an F28/2.8. The M28/2 is a rather exceptional lense. The convenience of the A28/2 would be nice (no step down metering), but as it stands the M28/2 works well as my low light, live performance lense. For a walk-around I use the F28/2.8 and it is a stellar lense, compact, sharp, AF.

I'm enjoying the 28mm focal length on APS-C.
01-08-2012, 08:21 PM   #13
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The Kiron 28/2 I have is a tiny bit sharper than the M28/2.8 I tested against (at f2.8) but the M28/2 had better contrast (SMC?) and without pixel peeping, images from the M28 had better apparent sharpness.
01-08-2012, 09:22 PM   #14
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QuoteOriginally posted by Anvh Quote
Sigma 30 f/1.4 also comes close, i wonder how they compare to each other.
I do not like the long MFD (0.45m) and it is not a FF lens.
01-08-2012, 09:43 PM   #15
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QuoteOriginally posted by les3547 Quote
I had the same reaction when I took a look at things through a 28mm. 28mm is a perfect "normal" lens for the APS-C sensor (just as 43mm is near perfect for a 35mm camera). If you can afford it, I highly recommend the Contax-Zeiss Distagon T* 28mm f2.8 reviewed in this thread. I judged it equal or superior to the FA31 at a fraction of the price. Right now there are several for sale on Ebay, with the best deal apparently this mint version in England for $352. If you prefer to buy from an established company, KEH is selling this one for $499 (but it isn't mint).
The lens is great but I am afraid I would not use it enough compare to the tiny A28/2.8.
I would rather get a A28/2 for larger aperture.
When you need f2, it's there for you.

Also, on APSC, it's not easy to get the DOF as thin as FA43 on film camera. In comparison, I will pick something better than f2.8.
I agree Kiron and Sigma are good choices, I am going to put my eyes on them.
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