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Old Mar 9, 2010, 1:53 AM   #1
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Default Question on the Pentax Kx kit lenses

I've seen discussion on the DA and DA L lenses. On some of the kits I have seen (Amazon.com), I see 18-55 mm AL and 55-300 EL, and they appear to be cheaper kits.

With a quick review it looks like the difference in the two lens kits (18-55/55-300) is about $150. What is the difference?

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Old Mar 9, 2010, 1:56 AM   #2
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The 2 lens kits that comes form pentax are both DAL lenses. They have a plastic mount plate vs a metal mount plate in the DA lenses.

I do not know about the AL and EL.
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Old Mar 9, 2010, 2:05 AM   #3
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I take it that I should only purchase a kit that advertises the DA or DAL lenses. And further, safer to by from a site such as Adorama or BHphoto over blindly buying from Amazon.
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Old Mar 9, 2010, 7:20 AM   #4
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According to the Pentax website, the "DA L" lenses are the lenses that were bundled with the K2000. "DA L" lenses are not available seperately, and are not part of any other kit. (... or, at least, they shouldn't be.)

EDIT: My mistake. Pentax' own on-line store lists the "DA L" lenses as kit lenses for the K-X. But the 18-55 and 55-200 are the only "DA L" lenses. The 55-300 is not a "DA-L" lens.

EDIT II: Yes, the 55-300 is available as a "DA L" lens. My apologies for any confusion.

The "ED" designation refers to the use of Extra-low Dispersion glass in at least one lens element, and the "AL" designation refers to the use of at least one Aspherical lens element.

I can't find anything about an "EL" designation.
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Old Mar 9, 2010, 9:40 AM   #5
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It was ED and not EL.

Are these different lenses or is it another way of describing the DA lenses?
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Old Mar 9, 2010, 10:10 AM   #6
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Some lenses are "AL" lenses, some are not. Some lenses are "ED" and some are not.

See http://www.pentaximaging.com/camera-lenses/

If a particular lens appears in one listing as not being an "AL" lens, or an "ED" lens, but it appears on Pentax' website as being an "AL" or an "ED" lens, the listing is for an "AL" or "ED" lens even if the designation(s) was (were) left off the listing. Pentax doesn't make an 18-55 lens that doesn't have an asherical element, for instance.
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Old Mar 9, 2010, 10:13 AM   #7
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Here is a link to the kit.

http://www.amazon.com/exec/obidos/tg...X0DER&v=glance
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Old Mar 9, 2010, 11:30 AM   #8
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My mistake. Pentax' own on-line store lists the "DA L" lenses as kit lenses for the K-X. But the 18-55 and 55-200 are the only "DA L" lenses. The 55-300 is not a "DA-L" lens.

EDIT: Sorry. Yes, the 55-300 is available as a "DA L" lens.
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Old Mar 9, 2010, 3:05 PM   #9
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Pentax came out with the 55-300 in an L version in the fall, around the same time as they came out with the Kx. I assume that it's like the other L lenses - it is missing the hood, distance gauge, focus clutch to allow manual focus when the camera is set to AF, and has a plastic mount (so I've been told - I've never actually seen one). Optically they are all the same as the regular lenses.

I do wish Pentax had called them something else beside DA L - it gets very confusing because "AL" means something else, and if you read the various ads at all of the camera stores you won't be able to tell which lens is really included. I can't absolutely tell if your Amazon kit is sold with the light versions of the lenses or not - I assume that they are.

As far as your question about the difference between the two kit lenses - the 18-55 is a wide angle to mild telephoto, while the 50-200 and 55-300 are longer telephoto lenses. I've owned the regular versions of both the 50-200 and 55-300 and prefer the 55-300 optically, mine is quite sharp and without much fringing etc. My 50-200 broke and I suspect now that it was probably a poor copy to begin with. The 50-200 isn't as long a telephoto as the 55-300 is.
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Old Mar 9, 2010, 5:20 PM   #10
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The k-x 2 lens kit are package with both DAL lenses, both the 55-200 and the 33-300. Remember I shoot this thing on occasions. The do not come with the hood, and since it is so new, you can not find the 55-300mm hood on ebay yet. Only adorama and bh has an aftermarket one.
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