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01-04-2011, 02:19 PM   #16
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QuoteOriginally posted by freshsnapper Quote
Which one do you think I should grab?
You do not have to buy either lens. Why don't you think about it? What lens do you have? Will either lesn complement your line-up? or is it a LBA?

Think twice.... and go for quality lenses that complement your line-up.

04-29-2011, 12:19 PM   #17
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I was thinking of a fast prime to replace my manual 50mm 1.7.

Regarding the 35mm 2.4 or the 18-50mm 2.8 zooms mentioned, can you blur the background at those apatures? Are they fast enough in low light?

Last edited by Captquin; 04-29-2011 at 12:26 PM.
04-29-2011, 02:12 PM   #18
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QuoteOriginally posted by Captquin Quote
Regarding the 35mm 2.4 or the 18-50mm 2.8 zooms mentioned, can you blur the background at those apatures? Are they fast enough in low light?
Depending on distance to subject and distance of subject to background... Yes... Definitely!

I have the 17-50 Tamron and I quite like the bokeh it produces... It's not close to my m-50-f1.7 but still nice...

I far as low light goes... The AF hunts a little when it gets dark but I don't ever find getting a fast enough shutter speed a massive issue due to the K-x's fantastic high ISO capabilities... It's also really quite sharp :-)
04-30-2011, 08:36 AM   #19
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I was in the same boat a few months ago and I picked the 35mm f/2.4. 50mm is just too far. The 35mm is even good enough to take pictures of your friends sitting across the table in a restaurant! That full stop does not matter. The 35mm does very well in low light with the K-x.

04-30-2011, 10:11 AM   #20
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QuoteOriginally posted by radium22 Quote
The 35mm does very well in low light with the K-x.
And is hands down THE cheapest prime lens to buy new on the market...

I have a question about the 35mm but will post it in the lens section... (If I can't find an answer in other threads...)
04-30-2011, 06:13 PM   #21
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QuoteOriginally posted by Captquin Quote
I was thinking of a fast prime to replace my manual 50mm 1.7.

Regarding the 35mm 2.4 or the 18-50mm 2.8 zooms mentioned, can you blur the background at those apatures? Are they fast enough in low light?
QuoteOriginally posted by radium22 Quote
I was in the same boat a few months ago and I picked the 35mm f/2.4. 50mm is just too far. The 35mm is even good enough to take pictures of your friends sitting across the table in a restaurant! That full stop does not matter. The 35mm does very well in low light with the K-x.
After picking up a 50mm I also found it too long for me, so I bought the 35mm f2.4 instead. It does do a good job blurring the background as well as solid performance on a K-7 in low light conditions. Here's an example:

Pentax K-7, 35mm f2.4, ISO 1100, f2.4, 1/45

05-03-2011, 06:05 AM   #22
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As mentioned, they're quite different lenses. The 35/2.4 will have much thicker DOF than the 501/7. So if you want to separate subjects from backgrounds, go with the FA50. If you want a greater zone of sharpness, get the DA35 -- or stop-down the 50. And yes, 1 f-stop DOES make a difference when shooting in low light, or fast-moving subjects.

The "usability" of any focal length is ambiguous. The old rule is that if you have a 50 and you want 35 coverage, take a step back. With a 24, for 35 coverage, take a step forward. Or two steps if you're short, heh heh. I have several fine 35's, many good 28's, and a couple good 24's. I find that I rarely use the 35's. If I want a 'normal' perspective, I'll mount a 28. For isolating a subject, or just for a narrower viewpoint, I grab a 50-55-58. One of the initial lenses I got with my K20D was the FA50/1.4 and it's still among my most-used glass.

I vote for the 50.
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