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12-12-2014, 08:06 AM - 1 Like   #1
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Old SMC Pentax + K50


I am a newcomer in this forum , from Jakarta, Indonesia

I am very glad that my SMC Pentax 49 mm F 1.4 old lens can be used with my New K-50 in AUTO mode, of course focusing manually.

The flower is one of the result

Regards, PW. Purwanto

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12-12-2014, 08:18 AM   #2
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The lens is 50mm. 49mm is the diameter of the filter threads. You will get much better results using M the auto modes it will only shoot at F1.4.
12-12-2014, 09:13 AM   #3
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That is a great thing of Pentax; you can still use old glass with new bodies.
Enjoy your old lens and your new camera!
12-12-2014, 09:45 AM   #4

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Here's the specific link for setting up the K-50:

Using Older Lenses on the PENTAX K-50 | Ricoh Imaging Support

12-12-2014, 10:53 AM   #5

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Welcome to the forum !
Yes....the old lense's work wonderful !
12-12-2014, 11:18 AM   #6
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My SMC K55/1.8 is the sharpest lens I possess for distant landscapes, it beats my 35/2.4, Tamron 70-200/2.8 and Sigma 17-50/2.8. Lovely to handle as well, smooooth.
12-13-2014, 03:26 PM   #7
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QuoteOriginally posted by Wuryatmo Purwanto Quote
I am very glad that my SMC Pentax 49 mm F 1.4 old lens can be used with my New K-50 in AUTO mode, of course focusing manually.
I have exactly the same lens and it works fine with the K50. Except when it's wide open - at f1.4 it's horribly soft. f2 is MUCH better! Makes a nice astrophotography lens too.
12-23-2014, 08:47 PM   #8
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Location: Saskatchewan Canada
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Hi, and welcome to this great forum. I just got my first old lens for my K-50. I am also quite happy that the new pentax cameras will take those great old lens.

Unfortunately, all the 50mm lens I have seen lately are too pricey. :-(

12-26-2014, 12:37 PM   #9
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I just ordered an SMC Pentax M 50mm 1.2 a couple days before Christmas, and I figure it will be here by Monday or so. I paid $19 shipped on Ebay for what was described as "mint" condition so here's to hoping. This will also be my first old lens as I've only had my K-50 now since October. I read the review page on the lens and between the image quality and the fact that it's full manual control, I figured this lens will be the best way to learn with.

But for the quality seen in the reviews, I don't think the 19 bux I spent is bad at all if it's indeed "mint" or close to it.

PentaxForums - SMC Pentax-M 50mm F2 Lens Review

I also bought a cheapo plastic Holga HL-P 60mm F8 "toy" lens for a bit less than what I paid for the SMC M 50mm. Right now all I have in hand is the 18-55 WR kit lens and my 80-210 Promaster (Tamron) AF (which turns out to be a pretty decent lens). Should be fun tinkering with the K-50 and these manual lenses when they come in the mail. I've been reading already on how to set up the K-50 for these manual lenses but I'm sure in a few days I'll still have a couple questions. This forum is great.

Off-topic question tho, where are you guys getting your little signature image? The ones that are little strips that say "PENTAX" and the model number with a picture of the camera. I'd like to sport one for the K-50, especially if someone has one with a red version in the pic

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