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01-31-2008, 11:39 AM   #1
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Feedback on Promaster AF 70-300 F/4- 5.6 LD please

I just got my K100D with kit lens and want to get a cheap long range lens but we good IQ as it wont make sense to buy something and not have decent pics.

Is this Promaster AF 70-300 F/4- 5.6 LD Macro a good choice and how much would you pay for a used one? I can get one local for $130 which I thing is too much but then again I know nothing about lenses. :-)

Below are the specs:

Max. Aperture f/4-5.6

Angle of view 34-8

Construction Groups/ Elements 9/13

Min. Focus Distance 3.1 Ft. (0.95M) Macro Mode

Max. Magnifications 1:2 at macro 300mm

Filter Size 62mm

Length 4.59 in. (116.mm)

Diameter 3.01 in. (76.6mm)

Weight 15.3 oz. (435 g)

01-31-2008, 01:53 PM   #2
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[QUOTE=shaolin95;167692]I just got my K100D with kit lens and want to get a cheap long range lens but we good IQ as it wont make sense to buy something and not have decent pics.

Is this Promaster AF 70-300 F/4- 5.6 LD Macro a good choice and how much would you pay for a used one? I can get one local for $130 which I thing is too much but then again I know nothing about lenses. :-)

Judging by the specs, this is proabably the same lens as the Tamron AF 75-300mm f/4.0-5.6 LD Macro Autofocus Lens. It has received good reviews, although like all such telephoto zooms, it will be a little soft at the longest (300mm) length and the widest aperture. If you decide to go this way, if I were you, I would buy the Tamron version for one reason: resale value. Several years ago, I bought a Promaster 28-200 zoom for a film SLR. It was obviously made by Tamron. The instructions (in the box) indicated that it should be returned to Tamron for repairs. It was a fine lens, but when I went to sell it, I had a difficult time and wound up taking less than I'm sure I could have gotten if it had the Tamron name on it. Unless you live in a big city (New York, Chicago, LA, etc.), to get a Tamron, you will probably have to buy online or mail order. I have found B&H Photo, Adorama, and Amazon to be worth dealing with. B&H has the Tamron lens for $130. I didn't check anywhere else.

If you can afford a little more, I'd buy the Tamron AF 70-300mm f/4-5.6 Di LD Macro Autofocus Lens. This looks like the same lens but the "Di" in the name indicates that it has been updated to work better on digital cameras. ($160 at B&H.)

I hope this helps.
01-31-2008, 01:58 PM   #3
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I'm pretty sure that's a Tamron 70-300mm. I found some specs on it and they seem to match perfectly:

Features
Focus Adjustment Autofocus
Zoom Adjustment Zoom Lens


Details
Filter Size 62 mm
Aperture f/4.0-5.6
Minimum Focus Range 37.4 in
Magnification Telephoto (65 to 600mm)
View Angle 8 - 34 degrees
Groups/Elements 13 Elements in 9 Groups
Diameter 3 in
Length 4.6 in
Weight 15.3 oz
MPN af275p700
01-31-2008, 02:30 PM   #4
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Maybe I should just save a little like you said and not jump into the first thing I see.

01-31-2008, 08:28 PM   #5
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Is the Pentax 50-200MM a better IQ lens? Not same range I know.
02-01-2008, 01:09 PM   #6
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I have the 50-200, but not the Tamron, so I can't compare the two. You might want to check this website, which has reviews on both:

All Tests / Reviews

Scroll down the page until you get to the Pentax cameras, and then look for the specific lenses.

You can also see a review of the 50-200 here:

Lens Test: Schneider-Kreuznach D-Xenon 50-200mm f/4-5.6 AF - - PopPhotoJuly 2006

Although the review states that it is a "Schneider" lens, it looks like (and the specs are the same as) the Pentax lens. Samsung uses the Schneider name on lenses that it sells for its versions of the Pentax DSLRs. Pop Photo reviewed the old version of the Tamron 70-300 in its July 2001 issue. You may be able to find that in a local library, especially a college library.
02-01-2008, 01:16 PM   #7
Ed in GA
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I had the Promaster 70-300. I gave it to my daughter and purchased a Tamron 70-300.

Guess what? Same Indentical Lens. The only difference I can find is the Lens Cap.
02-01-2008, 01:18 PM   #8
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Interesting. One thing I read from people discussing the Tamron is to get the DI as they claim the other version is very bad compared to the DI.

02-01-2008, 01:19 PM   #9
Ed in GA
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QuoteOriginally posted by shaolin95 Quote
Interesting. One thing I read from people discussing the Tamron is to get the DI as they claim the other version is very bad compared to the DI.

The version that's not the Di, has a focal range of 75-300. The Di LD is the 70-300
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