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12-21-2009, 11:57 PM   #46
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QuoteOriginally posted by PentaxPoke Quote
The OP was using a 30D with a 70-200 f/4 and was looking for Pentax equivalent on a Pentax k-x. The 30D is not FF, therefore the closest Pentax equivalent is the 60-250, not the 50-135. You would be correct if the OP was using something like a 5D, or a 1D, and wanted a Pentax crop-frame equivalent to that.
Actually the OP is currently using a 5D, but this wasn't stated in the first post. This is what he said:

"I've been a Canon DSLR user since the D30."

And in a followup post:

"I'm using the Canon 70-200mm f/4 on a full frame 5D so on the K-x this lens it would reach the 35mm equivalent of 200mm @ 135mm, right?"

(emphasis mine)

So the DA*50-135 is in fact the equivalent to what he is currently using.

12-22-2009, 12:10 AM   #47
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QuoteOriginally posted by PentaxPoke Quote
The OP was using a 30D with a 70-200 f/4 and was looking for Pentax equivalent on a Pentax k-x. The 30D is not FF, therefore the closest Pentax equivalent is the 60-250, not the 50-135. You would be correct if the OP was using something like a 5D, or a 1D, and wanted a Pentax crop-frame equivalent to that.
Actually, I am using a 5D.
I said I had been shooing Canon since the D30 not 30D.
But, the 5D part didn't make it with the transfer of the thread.

I just bid on and, to my surprise, won an FA 80-320mm on ebay for only $125.00!
Guess I'll be trying that one and, from what I have read, it is decent out to 200mm and stays at f/4.5.
I'll let you know after I get it and try it out.
I did receive my K-x and it is a truly remarkable camera.
I'm very impressed so far!
Frank
12-22-2009, 12:26 AM   #48
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QuoteOriginally posted by frank2001 Quote
Actually, I am using a 5D.
I said I had been shooing Canon since the D30 not 30D.
But, the 5D part didn't make it with the transfer of the thread.
Yes, you left that part out, and my mistake misreading it and gerald is right. Welcome!
12-22-2009, 09:30 AM   #49
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QuoteOriginally posted by PentaxPoke Quote
Yes, you left that part out, and my mistake misreading it and gerald is right. Welcome!
I did mention it but it was buried in my 4th or 5th post.
I edited the 1st post thanks to your making we aware it wasn't obvious.

12-22-2009, 09:37 AM   #50
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Now,
Any comments on the FA 80-320mm oldie, it's silver by the way, I accidentally bought?
I know it isn't at all what I was I was looking for but who knows?
I stumbled into the magic "beercan" when I shot Minolta so maybe there's a bright spot to this lens?

Thanks,
Frank
12-22-2009, 10:45 AM   #51
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QuoteOriginally posted by frank2001 Quote
Now,
Any comments on the FA 80-320mm oldie, it's silver by the way, I accidentally bought?
I know it isn't at all what I was I was looking for but who knows?
I stumbled into the magic "beercan" when I shot Minolta so maybe there's a bright spot to this lens?

Thanks,
Frank

frank, you should highly reconsider what I suggested to you. if you don't mind using and switching in between prime lenses, I highly recommend the FA77, FA/DFA 100/2.8 macro and a FA135/2.8 combo.
12-22-2009, 10:28 PM   #52
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QuoteOriginally posted by frank2001 Quote
Now,
Any comments on the FA 80-320mm oldie, it's silver by the way, I accidentally bought?
I know it isn't at all what I was I was looking for but who knows?
I stumbled into the magic "beercan" when I shot Minolta so maybe there's a bright spot to this lens?

Thanks,
Frank
It's an "ok" lens - for what you paid, you should be quite happy. But it is outperformed by the DA55-300, especially at the long end.
12-22-2009, 10:41 PM   #53
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QuoteOriginally posted by Pentaxor Quote
frank, you should highly reconsider what I suggested to you. if you don't mind using and switching in between prime lenses, I highly recommend the FA77, FA/DFA 100/2.8 macro and a FA135/2.8 combo.
I'd add the DA 40/F2.8 Limited. Paired with the K-x, it's a sweet combination and will make you wonder why other cameras are so big.

To paraphrase Triumph the Comic Insult Dog, your 5D and L glass had poops bigger than the K-x with the DA40 pancake.

12-23-2009, 05:07 PM   #54
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QuoteOriginally posted by bpjod Quote
I've recently switched from Canon to Pentax for the small primes. I've acquired most of the DA Ltd. lenses. I love shooting with the DA70. That said, I miss my 70-200/4 and 400/5.6 but I don't want the bulk anymore. I'm trying the DA55-300 and for the most part I like it. It's got great image quality and the f/4 lasts to nearly 200mm (about 190mm).

On the other hand, I've been reading for a long time that Pentax's AF is slow, but I've never before experienced slow AF with my K7 and Ltd lenses as they're very fast. Now I have the 55-300 and I'm experiencing the slow AF that I've read about previously. There is no comparison in AF speed between the Canon 70-200/4 and the DA55-300. So far the range and size vs. the AF performance trade-off is acceptable to me but I might be tempted to try a DA*200/2.8 for sports photography if its AF speed is more like the DA Ltds.
The K-7 is the camera that at least in normal light "fixed" the notoriously slow AF. Most of us get around the slower AF by just pre-focusing for fast moving targets and using skill to get the great shot rather than just letting a camera do all the work.
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