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06-11-2011, 02:13 PM   #1
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Fast Low light lens for Indoor shots with K100D

Hello All,

So I have been putting this off for a while and am looking for a nice fast low light performer to use with my K100D, I have the kit lens and the 50-200 zoom, but both are seemingly too slow...

Was thinking of the Tam 28 75 but wondered if that was the best bet or if I should look elsewhere...

Wish I had SDM but don't think I can swing both a body and lens now..

Thanks

06-11-2011, 02:33 PM   #2
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It looks like you are used to zooms, then you will like the tamron 28-75. It looks and feels plasticky but takes nice pictures. It is very versatile. Faster lenses are usually prime lenses like the fast 50mm lenses. But you have to learn to move with your feet to frame the pics.

[SDM is not really fast, just whisper quiet]
06-11-2011, 02:52 PM   #3
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Personally, I'd look at something like a Sigma 24 or 28 f/1.8 or 30 f/1.4. Of course, you could go all out and get the Pentax 31 f/1.8 Limited.
06-11-2011, 03:04 PM   #4
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I like the suggestion of a Sigma 30 f1.4. My favourite indoor lens is a FA31 but that's kind of spendy.

06-11-2011, 04:14 PM   #5
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Primes are great for low light, especially fast 50s, but I think you should check what focal length you shoot at most frequently.

I was about to pull the trigger on the tammy 28-75 due to its versatility and great reviews, but I chose to stick with primes. Either way, you can't go wrong.
06-11-2011, 05:48 PM   #6
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The obvious inexpensive prime choice is the DA35/2.4 - that's exactly why it was introduced. but sure, the 28-75 works too, and so would other more expensive primes - or less expensive manual focus primes.
06-11-2011, 09:10 PM   #7
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You might consider getting a K-x body. It will increase your maximum effective ISO from about 400 to 1600 or more; in effect this adds 2 full stops to your lenses. It will cost you less than buying fast lenses to cover the range you already have.

Not that there is anything wrong with fast lenses Except that 300:2.8 lenses are heavy!

I have both K-x and K100D bodies and am happy about it!

PS I just returned from a dinner function held in a museum; I took the K-x and the Tammy 28-75 & got some good shots at ISO 1600-3200. The K100D would have failed with the same lens.
06-12-2011, 06:39 AM   #8
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Hey thanks all,

So should have mentioned the intent, basically to shoot indoor sporting events and dance or what not, tried taking some picures of my daughters gymnastics event yesterday and was disappointed with the quality.

I will check out the lenses mentioned and the option of swapping the body.

Thanks

06-12-2011, 08:46 AM   #9
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A new body would definately help with the ability to use a higher iso. And would be cheaper then a fast lens. Even a kx body can be obtained for around $400. A new dal35 is $200. When compared to the kit lens at 35mm the aperture difference is 4 vs 2.4 about two stops. However dof is decreased. With a new body tye ability to shoot at 1600 iso will mean all your lenses will get the benefits even the 50-200mm. Which im guessing will be used more for the gymnastics if you are shooting from afar.
06-12-2011, 10:17 AM   #10
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Well that makes a bit of a difference then. As said, a new body with better noise qualities will probably be the better choice, and you can always pair it up with a long fast lens later. Either way, you will gain about a 2 stop advantage from either of them immediately, and probably a good 4 stops if you combine them. The upside to a new body is cost savings over something like a 50-150 or 70-200 f/2.8. The upside to a new lens is that you will most likely also gain some IQ over your current one.
06-12-2011, 02:11 PM   #11
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Hey thanks all, so would I go for a K-r or a Kx?

Regards,
06-13-2011, 03:04 PM   #12
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Images sensor wise they provide pretty much the same results with the kr slightly better results in noise reduction. I think bang for buck kx wins but the extra features of the kr is tempting.
06-17-2011, 12:12 PM   #13
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I've been very happy with the 50 f1.4 prime... but, depending on the space, it might be a bit tight for indoors.
06-18-2011, 07:20 AM   #14
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Let's look at this logically.

* When upgrading lenses, faster is better. But you want to shoot sports and gymnastics, so you also need longer.
* When upgrading bodies, newer is better. You'll be less inclined to 'upgrade' anytime soon, than with an older body.
* Camera bodies lose value faster than lenses. But your paid-for 50-200 will have its life extended on a newer body.
* Mounting a very expensive faster lens onto your paid-for K100D won't gain as much speed as using a newer body.

My suggestion: Keep the 50-200 and buy a Kr.
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