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09-02-2009, 02:31 AM   #1
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Pentax Normal SMCP-FA 50mm f/1.4 Autofocus Lens......couple questions.

I am still "learning up" on a better indoor lens for my K100D.......have the kit lens that works fine for most situations, but for indoor shooting, it just falls short (without using the flash).

I really would like to come across a "Pentax 35" or "fast 35", but I understand the lens is out of production.

If you have a "fast 50", please chime in and tell me your thoughts on using it indoors (such as birthday party shooting, etc.). I am thinking for indoor use, I'd almost have to back off my subject too far. Am I correct on this assumption?

And for a new "fast 50", what should I expect to pay for a new lens?

Any info appreciated.

vmax84

09-02-2009, 03:09 AM   #2
Ari
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the 50 1.4 is a GREAT lens for indoor shooting. When I had it, I don't recall ever feeling cornered by the focal length. Low light results are fantastic, and you can get a new one for a relatively good price. Here is a link for it at B&H:Pentax | Normal SMCP-FA 50mm f/1.4 Autofocus Lens | 20817 | B&H
Free shipping, so that helps a little with the price.
09-02-2009, 03:46 AM   #3
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I think you are right. When I am shooting with the FA 50 on my camera inside, I tend to get mostly head shots -- hard to capture what's generally going on. You can only back up so much and 50mm on APS-C gives you a field of view that is like 75 on film. That said, it can give great captures in low light, which I take it is what you are after.

Interestingly, you can still find the FA 50 f1.7 out there, for a reasonable price in some places.50mm f/1.7 SMCP-FA Standard Lens
09-02-2009, 07:19 AM   #4
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Set your kit lens to 50mm and keep it there...Shoot stuff...

What do YOU think of the focal length? That's all that really matters.

That said, the FA 50mm f/1.4 is a great lens and I only sold it when I switched to Canon. The FA 35/2 is also great.

Also look into the Sigma 30mm f/1.4. I have one for my Canon system and it's an absolutely amazing lens.

09-02-2009, 07:20 AM   #5
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Hi Ari! Long time no see Still shooting Pentax?
09-02-2009, 07:31 AM   #6
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The FA 50 1.4 is a great lens, providing adequate speed for shooting with available light in your typical indoor setting.
I love mine, but I do find that it is a little long sometimes, so I also now own a Sigma 30mm f1.4, which is about a 45mm equiv on a APS-C sensor.

Both are great lenses, but the 30mm spends a little more time on my K200 than the 50mm does in these situations, simply because it allows me to capture more of what's happening around me if we are in close quarters...which being indoors often brings about.
09-02-2009, 07:36 AM   #7
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Can't fault the 50/1.4.
Some reviewers claim it is the best 50 amongst all 50s across the brands.
There is so much room for creativity and low-light shooting.
You won't regret having it.
09-02-2009, 07:49 AM   #8
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QuoteOriginally posted by Ash Quote
Can't fault the 50/1.4.
Some reviewers claim it is the best 50 amongst all 50s across the brands.
There is so much room for creativity and low-light shooting.
You won't regret having it.
Best bang for the buck,period.

09-02-2009, 04:57 PM   #9
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So what is the difference between the 1.4 and the 1.7 Pentax 50mm lens? Are they both autofocus?

Thank you.

vmax84
09-02-2009, 05:05 PM   #10
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QuoteOriginally posted by vmax84 Quote
So what is the difference between the 1.4 and the 1.7 Pentax 50mm lens? Are they both autofocus?

Thank you.

vmax84
If you are talking about the FA lenses, they are both autofocus. The f/1.4 is a bit faster (~1/3 stop) than the f/1.7.
09-02-2009, 05:19 PM   #11
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QuoteOriginally posted by egordon99 Quote
If you are talking about the FA lenses, they are both autofocus. The f/1.4 is a bit faster (~1/3 stop) than the f/1.7.
Other than the 1.4 being a little faster, are they basically the same lens? Sorry for the dumb questions. Just looking to make the right decision on replacing my kit lens for indoor work.

vmax84
09-02-2009, 05:23 PM   #12
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Well I love the A- 50/1.7. I do find that on occasion it is a bit long for tight indoor areas but it really produces some nice images with available light. My biggest challenge is focus even with a split prism focus screen, manual focus is tough. I will be upgrading to the FA as soon as funds allow.

Indoor Exposure: 1/15 Aperture: f/4.5



hand held (slightly oof) Exposure: 1/3 sec Aperture: f/7.1

09-02-2009, 05:27 PM   #13
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QuoteOriginally posted by mtroute Quote
Well I love the A- 50/1.7. I do find that on occasion it is a bit long for tight indoor areas but it really produces some noce images with available light. My biggest challenge is focus even with a split prism focus screen, manual focus is tough. I will be upgrading to the FA as soon as funds allow.

Indoor Exposure: 1/15 Aperture: f/4.5



hand held (slightly oof) Exposure: 1/3 sec Aperture: f/7.1



Now those are the types of shots I'm looking for!!!! But can't you put the lens on autofocus and ditch the manual focus stuff for shots like this?

vmax84
09-02-2009, 05:32 PM   #14
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My version is the A (manual focus) I will be getting the SMC AF 50mm soon. You can still have trouble with auto-focus hunt in really low light. So even with auto focus it is not a given that it will be sharp. Also really low light requires a wide open aperture which creates a razor thin DOF, so again, sharp focus in low light is challenging. I use at least an ISO of 800 in the situations above.
09-02-2009, 05:37 PM   #15
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QuoteOriginally posted by mtroute Quote
My version is the A (manual focus) I will be getting the SMC AF 50mm soon. You can still have trouble with auto-focus hunt in really low light. So even with auto focus it is not a given that it will be sharp. Also really low light requires a wide open aperture which creates a razor thin DOF, so again, sharp focus in low light is challenging. I use at least an ISO of 800 in the situations above.
Thanks for the info.....just figured out that "FA" means autofocus.......I think!!

vmax84
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