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02-03-2014, 01:38 AM - 3 Likes   #1
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Got a really cheap 28mm F4 prime with AF.

I am trying to force myself out of a comfort zone and go with a normal prime lens.
I spent a long time looking for a moderately price, autofocus, prime with good image quality and I think I finally found one.
I have to say it works very well: it is sharp, has quick autofocus and nice contrast. It is a bit heavy for such a slow prime though.

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Last edited by rrstuff; 02-03-2014 at 01:46 AM.
02-03-2014, 01:51 AM   #2
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I literally LOL'd when I saw the tape label. Is it sharp wide open??
02-03-2014, 01:54 AM   #3
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*smirk* Clever boy!
02-03-2014, 01:57 AM   #4
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pretty sharp, yes. It's probably thanks to the generous front element although I wouldn't have guessed because it is a lot smaller and lighter than the recent sigma 'Art' primes.

02-03-2014, 03:29 AM   #5
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Hahahahaha
02-03-2014, 05:48 AM   #6
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Lol.
02-03-2014, 06:12 AM   #7
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Haha.

Brilliant! There is Marketing potential here: The World's First Infinitely Adjustable Prime Lens ! (3M Scotch-brand tape included with the kit). I think the weight and size trade-off is worth it.

- Craig
02-03-2014, 11:48 AM   #8
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QuoteOriginally posted by rrstuff Quote
I am trying to force myself out of a comfort zone and go with a normal prime lens.
Good for you! Great solution.

02-03-2014, 12:47 PM   #9
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Brilliant!
02-03-2014, 12:56 PM   #10
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Good one!
02-03-2014, 03:42 PM   #11
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QuoteOriginally posted by c.a.m Quote
Haha.

Brilliant! There is Marketing potential here: The World's First Infinitely Adjustable Prime Lens ! (3M Scotch-brand tape included with the kit). I think the weight and size trade-off is worth it.

- Craig
Indeed. I am already preparing the HD version, which will retail according with the current Pentax pricing, for $699 and a budget 'Takumar' for $499 with significantly degraded coatings. I should be done with both tonight.
02-04-2014, 12:46 AM   #12
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Here's a takumar version the DA 28mm F4 with degraded lens coating and lack of the iconic SMC. I have to admit, the poorer lens coating has taken its toll on image quality. The lens would probably benefit from a hood, but manufacturer didn't include one. The contrast is relatively low. Interestingly, it is the sharpest in macro shots. The lens also has a significant vignetting, but it does seem to render very nice, neutral, colors. I could do a formal test, if I have some time this week.
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02-04-2014, 03:12 AM   #13
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Can we see a test shot with the Takumar?
02-04-2014, 04:58 AM   #14
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QuoteOriginally posted by rrstuff Quote
I wouldn't have guessed because it is a lot smaller and lighter than the recent sigma 'Art' primes.


I have stopped carrying the 16-45 most of the time to save weight (and since I bring the DA15 and DA35 anyway) but you're right about those Sigmas!

Do you have any problems with wobbly barrel on your 16-45? I'm thinking of sending in mine for repair, since the wobbliness makes it hard to use in portrait mode at 16 mm (it gets decentered).
02-04-2014, 05:19 AM   #15
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QuoteOriginally posted by rrstuff Quote
The contrast is relatively low.
I've read that the combination of the 3M Scotch filter and that particular Hoya filter tricks the exposure meter. Have you noticed any problems?

- Craig
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