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03-24-2013, 06:06 PM   #1

which fixed lens for k-30

Id like to get a portrait lens for my k-30 preferably cheap it can even be manual. In fact, I was looking at a 28mm online earlier what do you guys think is best?

03-24-2013, 06:20 PM   #2
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This is a great popular lens:
Rokinon 85mm f/1.4 Aspherical Lens for Pentax B&H Photo Video

Don't use wide-angles for portraits as they introduce distortion which will screw up people's faces. If you do want a nice wide angle, though, take a look at the Sigma 30mm F1.4 (there's one on the marketplace right now).

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03-24-2013, 06:32 PM   #3
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With the Pentax crop factor, a 50-70mm lens is in the sweet spot. Wider angle makes a big nose and small ears. Longer focal lengths flatten the face. 85-105 is the classic focal length for film. You can still make either work, though indoors may get a bit cramped with longer focal lengths.
03-24-2013, 06:49 PM   #4
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An M 50mm f1.7 is probably the absolute best buy--very cheap and very good. With cropped sensor it is a good portrait lens to start with. Likely about $50. BTW it is very sharp.

03-25-2013, 01:28 AM   #5
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I suggest that SMC Pentax-DA 70mm F2.4 Limited will satisfy your demands.
Personaly I like it very much.
03-25-2013, 01:41 AM   #6
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If you are looking to go even cheaper, try searching ebay for a ricoh or sears 50mm. You can look through the reviews to see which are good
Most are going to be pretty good (especially for what you are likely to pay for them).
03-25-2013, 02:28 PM   #7
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QuoteOriginally posted by dms Quote
An M 50mm f1.7 is probably the absolute best buy--very cheap and very good. With cropped sensor it is a good portrait lens to start with. Likely about $50. BTW it is very sharp.
I'm also a beginner with a K-30, and ended up picked a Pentax-A 50mm f/1.7. It was less than $75 including shipping and an A lens seems significantly easier than an M if you're just starting out, you can set the lens's aperture to the A position and let the camera control aperture. It's basically exactly like a modern lens except that you turn the focus ring to focus instead of it happening automatically, and the camera still provides a focus-lock indicator for you.

03-25-2013, 02:55 PM   #8
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dboeren makes an important point--with an A lens you can use (for example) aperture priority exposure, rather than just manual. The 50mm f/1.7 A and M lenses are, I believe, optically identical.
03-25-2013, 07:38 PM   #9
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If you find a good deal even 35mm or 40mm can take a good portrait, but you'll need to be closer and it's not the 'classic' style. A 28mm can serve but you risk some perspective distortion, and it's harder to get the background as smooth as with a longer lens. I haven't done a portrait shot with it but my 100/3.5 could be pretty good too - but it's a macro, and most folks say that's too sharp for a portrait lens. Software can solve that if I ever try it though!

I agree with the others here that the 50mm is a great choice, and my DA70 is really impressive but quite a bit more money up front. I like both of these for their compactness.
03-27-2013, 07:55 PM   #10
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Judging from what Benjamin Kanarek does with the DA 40/2.8 Limited I think it's good for portraits.
03-27-2013, 09:10 PM   #11
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The Pentax 70mm f2.4 Limited is my top fav lens for portraits and studio shots. I use it whenever I can!

50mm - workable and sometimes i like the added perspective @ closeups of children.
58mm (Voightlander) - Love the focal length, but it doesn't get used too much because of manual focusing.
70mm - Love it
85mm (Samyang/Rokinen) - very hard to get the focus right with, even with a better focusing screen. I'd like to use this more too, but it's too difficult to use @ larger apertures.
90+ - Haven't done too many portraits with longer focals.

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