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gifthorse · 03-21-2012, 08:32 PM

Why are some lenses listed twice in the reviews with different prices and ratings? For example, in the Pentax Forums> Third-party lens reviews> Tamron Lenses for Pentax: Legacy Zoom lenses, there are two listings. One is the Tamron 75-300 1:4-5.6, LD with a 8.67 rating and a price of $118. Right below that is a Tamron 75-300 1:4-5.6, LD Tele-macro 1:3.9 with a 7.50 rating and an average price of $76. Are these two different lenses? or the same lens but just a second review? I'm looking at a little longer lens and right now I have my eye on either a Tamron 28-300 or a combo Tamron 28-105and a Tamron 75-300 for just about the same price as the 28-300. I already have a DA L 18-55, an F 35-70, and a DA L 70-200, so I don't really need the shorter lens. The 28-300 seems to be faster on the short end but slower on the long end which is where the lens will be used most. Dang! I want it all!

Adam · 03-21-2012, 08:51 PM

Sounds like those are different lenses because of the apertures- I'd click in and read the reviews to confirm.

RioRico · 03-21-2012, 09:41 PM

I just glanced at those. They appear to be the same model lens. Is there a database mechanic in the house?

**Lowell Goudge** · 03-22-2012, 03:38 AM

Without reading the reviews and looking at the lenses and specs, it could be that one of the reviewers started a review thread with an incomplete model and the other with the full lens designation.

The other option is that there could be two variants one which offers close focus, and one that does not.

These two variants could have different optical designs as a consequence

stevebrot · 03-22-2012, 07:17 PM

Originally posted by Lowell Goudge

Without reading the reviews and looking at the lenses and specs, it could be that one of the reviewers started a review thread with an incomplete model and the other with the full lens designation.

The other option is that there could be two variants one which offers close focus, and one that does not.

These two variants could have different optical designs as a consequence

Or something like that. Sometimes there is cross-pollination between entries. Without a clear indication of model number or distinguishing marks there is plenty of room for confusion. Add in a few people posting reviews for the wrong lens...well, you see what I mean.

As for the two lenses in question...the photos and descriptions are essentially the same, though it is anybody's guess what lens these people are talking about!

Steve

03-21-2012, 08:32 PM	#1
gifthorse Pentaxian Join Date: Dec 2011 Location: Nevada Photos: Gallery Posts: 2,949	Lens review question Why are some lenses listed twice in the reviews with different prices and ratings? For example, in the Pentax Forums> Third-party lens reviews> Tamron Lenses for Pentax: Legacy Zoom lenses, there are two listings. One is the Tamron 75-300 1:4-5.6, LD with a 8.67 rating and a price of $118. Right below that is a Tamron 75-300 1:4-5.6, LD Tele-macro 1:3.9 with a 7.50 rating and an average price of $76. Are these two different lenses? or the same lens but just a second review? I'm looking at a little longer lens and right now I have my eye on either a Tamron 28-300 or a combo Tamron 28-105and a Tamron 75-300 for just about the same price as the 28-300. I already have a DA L 18-55, an F 35-70, and a DA L 70-200, so I don't really need the shorter lens. The 28-300 seems to be faster on the short end but slower on the long end which is where the lens will be used most. Dang! I want it all!

03-21-2012, 08:51 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Sounds like those are different lenses because of the apertures- I'd click in and read the reviews to confirm. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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03-21-2012, 09:41 PM	#3
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	I just glanced at those. They appear to be the same model lens. Is there a database mechanic in the house?

03-22-2012, 03:38 AM	#4
Lowell Goudge Site Supporter Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 17,891	Without reading the reviews and looking at the lenses and specs, it could be that one of the reviewers started a review thread with an incomplete model and the other with the full lens designation. The other option is that there could be two variants one which offers close focus, and one that does not. These two variants could have different optical designs as a consequence

03-22-2012, 07:17 PM	#5
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Lowell Goudge Without reading the reviews and looking at the lenses and specs, it could be that one of the reviewers started a review thread with an incomplete model and the other with the full lens designation. The other option is that there could be two variants one which offers close focus, and one that does not. These two variants could have different optical designs as a consequence Or something like that. Sometimes there is cross-pollination between entries. Without a clear indication of model number or distinguishing marks there is plenty of room for confusion. Add in a few people posting reviews for the wrong lens...well, you see what I mean. As for the two lenses in question...the photos and descriptions are essentially the same, though it is anybody's guess what lens these people are talking about! Steve

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