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05-15-2010, 01:19 PM   #1
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100-300mm SMC FA lens

I am wondering if a Pentax smc fa 100-300 lens mounted on a K-x body would be too heavy to use without a tripod and get decent results? Any thoughts on this combination?

05-15-2010, 02:15 PM   #2
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You'd be able to hand-hold it, and since it doesn't have a tripod mount, using it with a tripod wouldn't be all to sturdy either.

I've hand-held my FA 80-320mm with no problems.

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05-15-2010, 03:02 PM   #3
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You don't say which version of the lens you are looking at and according to the PF data, one is 600g and the other almost 400g. But my da*300/4 is over 1kg and I can swing it all day on a k20d so I would bet a lens half the weight would feel pretty good on a k-x. Go for it.
05-15-2010, 03:34 PM   #4
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I've got the "heavy" version of the 100-300 (the PZ version, with what feels like a metal inner barrel), and it feels a little over balanced on the k10, so I don't think it'll balance too well on the kx.

05-15-2010, 05:45 PM   #5
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The add on ebay says 21 ounces.
My K-x does have a tripod mount. thanks and here is the link

PENTAX SMC FA 100-300mm Zoom Lens 4.5-5.6 100-300 nice - eBay (item 250630723163 end time May-20-10 11:06:22 PDT)
05-15-2010, 07:50 PM   #6
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i have the FA 100-300 f4.7-5.8, and it is very easy to handhold on my K20D. Well, "very" is too strong a word, it needs a little practice, but it's easily doeable. I've got butterfly shots in the Pentax Photo Gallery taken with that lens. SR really helps, pre-focusing slowly and controlling your breath also.
05-15-2010, 09:03 PM   #7
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QuoteOriginally posted by Bob Harris Quote
The add on ebay says 21 ounces.
My K-x does have a tripod mount. thanks and here is the link

PENTAX SMC FA 100-300mm Zoom Lens 4.5-5.6 100-300 nice - eBay (item 250630723163 end time May-20-10 11:06:22 PDT)
That's the correct weight. About 600g: Pentax Lens Review Database - SMC Pentax-FA 100-300mm F4.5-5.6 Lens Reviews

My 80-320mm weighs almost as much (550g), and can be hand-held no problem due to it's significant length.

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05-15-2010, 09:06 PM   #8
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QuoteOriginally posted by Bob Harris Quote
The add on ebay says 21 ounces.
My K-x does have a tripod mount. thanks and here is the link

PENTAX SMC FA 100-300mm Zoom Lens 4.5-5.6 100-300 nice - eBay (item 250630723163 end time May-20-10 11:06:22 PDT)
Looks like that's the version with power zoom: FA 100-300/4.5-5.6

05-17-2010, 05:06 AM   #9
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That version is ok, but not nearly as well regarded as the f4,7-5,8. It's an acceptable lens, by no means stellar. for a good price, anyone could put it to good use, however.
05-17-2010, 06:49 AM   #10
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The lighter version was just posted for sale on the Marketplace if that helps.
https://www.pentaxforums.com/forums/photographic-equipment-sale/101680-sale-t...-shipping.html
05-17-2010, 08:57 AM   #11
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Thanks to all for the information and opinions, we explore and hike many areas as we travel and I just didn't want to carry a big club around. I purchased a 2X converter and so far the photos are soft it seems to me.
05-17-2010, 01:17 PM   #12
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QuoteOriginally posted by Bob Harris Quote
Thanks to all for the information and opinions, we explore and hike many areas as we travel and I just didn't want to carry a big club around. I purchased a 2X converter and so far the photos are soft it seems to me.
I don't know about the f4,6 version, but the f4,7 is very light and portable. I got it in part to replace my vivitar series 1 70-210 which weighted one kilogram.

Another option is to get a prime to cover the tele range. I've got my hands on a manual Pentax 150 mm f3,5, a better lens, faster, sharper, lighter and smaller. Only manual focus but still very useful.
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