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06-19-2011, 06:53 PM   #1
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I have a stock and 50mm lenses.. do I need 35mm and lower?

I'm kind of torn... I have the stock lens on my Pentax K-r and I'll be picking up a 50mm f1.4 very soon. My eye is also on a Sigma Super Wide 24mm, but I'm not sure if I actually need it. The Sigma would be significantly wider than stock though...

I'm just starting my lens collection (also have a 55-300), so any help would be appreciated.

06-19-2011, 07:00 PM   #2
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Stock lens? That should be 18-55mm. The 24mm wouldn't be wider than that. It would be faster as it is a 2.8 vs the 3.5 or the Kit lens, but not wider.
06-19-2011, 07:23 PM   #3
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Oops, yes I meant faster
06-19-2011, 07:45 PM   #4
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I'm saving for the 12-24mm or the 15mm limited. I've read from forum members that the Sigma is not sharp at the fast apertures and they recommend the 21mm limited. The price is about the same and those limited hava amazing color.

06-19-2011, 07:51 PM   #5
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The DA * 16-50 will be a good choice.
06-19-2011, 07:58 PM   #6
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QuoteOriginally posted by kenafein Quote
I'm saving for the 12-24mm or the 15mm limited. I've read from forum members that the Sigma is not sharp at the fast apertures and they recommend the 21mm limited. The price is about the same and those limited hava amazing color.
I have a Sigma Super Wide 24mm 2.8, and it's very sharp in the center wide open. The corners are, of course, a bit softer--but so are the limited's corners.
06-19-2011, 08:14 PM   #7
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QuoteOriginally posted by SRG01 Quote
My eye is also on a Sigma Super Wide 24mm, but I'm not sure if I actually need it.
My personal view is that if you're not sure if you need it, or don't know whether you need it or not, then you don't. (Or you've failed at tricking yourself or justifying it to yourself )Satisfying your wants are always nice though. As you've mentioned, you're only just starting your lens collection, and I'm assuming, though I may be wrong, that you're also only starting to get into photography. Shoot with your existing lenses first, and you'll soon realise what it is that you find lacking and what it is that you'll want.
06-19-2011, 08:15 PM   #8
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Note which focal lengths you shoot with your 18-55 kit lens. Note which focal lengths you wish you had a faster lens, and which focal lengths the kit lens can't reach. Ask yourself, "What do I want to do that I can't do with what I have?" Go from there.

IMHO the main reasons to get prime lenses within the focal range of the kit lens are 1) if they're faster (and sharp at wider apertures), or 2) if you want to see how different lenses render images. For the first, I got fast manual lenses: 24/2, 28/2, 35/2, 50/1.2, 55/1.4. For the second, I got slow/odd manual lenses: 21/3.8, 35/4.5, 40/4.5, 50/4, etc. I also got manual lenses that push beyond the kit lens: 16/2.8, 58/2, 90/2.8, etc. I use CIF (catch-in-focus) in place of AF with all those. I do use AF zooms and one AF prime (FA50/1.4) as needed, but those (mostly cheap) manual primes force me to see differently.

Do you NEED slightly faster 24-28-35-45-55mm lenses? Probably not, unless you're curious. I personally NEED my Tamron 10-24, DA18-250, FA50/1.4, and not much else; but I really WANT my other 210 lenses also. (I just now won a couple more Fifty's, bringing my count of those up to 45.) We get to decide whether we want to cover some focal ranges to TAKE pictures, or to pinpoint special focal lengths and lens qualities in order to MAKE pictures.

That dichotomy is over-simplified but true. So, figure out what pictures you want to make, and what lenses and stuff will help you make those pictures.

06-19-2011, 09:11 PM   #9
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I have the 35/2.4 and I LOVE it. It is on my camera 90% of the time. The field of view from a 35 is much better than a 50 for general purpose and its good for portraits too.
06-19-2011, 09:12 PM   #10
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Also, you are not breaking your bank with that lens.
06-19-2011, 10:21 PM   #11
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Depending on what you want to do.

I personally prefer FA35 for street shots or half body portraits over FA50.
06-19-2011, 10:39 PM   #12
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Thanks for all the help guys. I actually picked up the 55-300mm over the 35mm 2.4 on Friday (despite the 55-300mm being more expensive!) because I frequently got frustrated with the range my 18-55mm. Of course, I would love it if the 55-300 was a little faster, but I can't argue with the price!

And no, I guess I don't need faster primes. It's just a nice to have, since I recently discovered all the screwmount lenses on eBay I'm actually more comfortable with manual focusing, for some reason...

Thank you everyone for your thoughts
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