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03-24-2013, 06:06 PM   #1
eli
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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
https://www.pentaxforums.com/userreviews/
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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