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10-21-2007, 08:12 PM   #1
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Have you compared the 80-320 to 3rd party lenses?

Wondering if you've compared the Pentax FA 80-320 to Tamron and Sigma offerings in that zoom range and what your experience/opinions are.

TIA!/Scottax1

10-21-2007, 09:46 PM   #2
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QuoteOriginally posted by scottax1 Quote
Wondering if you've compared the Pentax FA 80-320 to Tamron and Sigma offerings in that zoom range and what your experience/opinions are.

TIA!/Scottax1
I could be wrong and hope I am, but I do not believe Tamron or Sigma make a lens like that.
10-22-2007, 12:18 AM   #3
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I recently got the Tamron 70-300mm f/4-5.6 Di LD and love it! The price came to 160 bucks after shipping, with a price like that you cant afford to not get one I haven't used the Pentax lens so I really cant compare... but if your looking for an inexpensive telephoto lens that performs really nice, this is the one!
10-22-2007, 05:02 AM   #4
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jgredline, the differences between 70/75 and 80mm and 300 and 320mm are very small indeed.

Ryan referenced but one of the many 70/75-300mm lenses offered over the years by Sigma and Tamron. Also, versions from both these manufacturers have and continue to be offered by Ritz Camera under their Quantaray name. All are readily available in Pentax mount

I'm hoping to find someone who has experience with the Pentax 80-320 and one or more of the 3rd party variants and can make a reasonable comparison between them. As usual, Pentax costs more; I wonder if it's worth it in this case.

Cheers!/Scott

10-22-2007, 05:10 AM   #5
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I used to own a 80-320, very good colour, sharp till about 250mm.
10-22-2007, 09:55 AM   #6
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if you decide to go third party go tamron. sigma can some times not work correctly with newer digital slr's and thus either focus's in and out or focus's out of focus. if that made sense
10-23-2007, 07:59 PM   #7
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QuoteOriginally posted by selar Quote
I used to own a 80-320, very good colour, sharp till about 250mm.
I agree that the 80-320 is pretty good to 250 and beyond if light is right. I also have the tamron 28-300 and 28-200 and I believe that I like the quality from the 80-320 the most. I posted ealier that I was having a problem focusing past 135mm with the 80.....so it is in the shop for repairs. I will be selling the two tamrons and keeping the Pentax 80-320 and maybe pic up a new DA* zoom. I found the two tamron lenses more soft at long end than the Pentax.
10-24-2007, 06:47 PM   #8
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QuoteOriginally posted by scottax1 Quote
I'm hoping to find someone who has experience with the Pentax 80-320 and one or more of the 3rd party variants and can make a reasonable comparison between them. As usual, Pentax costs more; I wonder if it's worth it in this case.
I have a 80-320, and had a Sigma 70-300. The Sigma that I owned was the earlier non-APO version. From everything I've heard, if you opt for the Sigma...get the APO version. It produces better images.

I've kept the 80-320 because I'm satisfied with the images it produces, even past 250mm. It used to be part of my lighweight, 3-lens travel kit that included the kit lens, the 28-105, and the 80-320. This gave me good coverage from 18mm to 320mm with an about 25mm overlap between lenses.

The Sigma I had was part of a two lens kit that also included a slow 28-70 lens. I found that I did too many lens changes with just the two lenses. Plus and minus 70mm seems to be a sweet spot for me (at that time). So, I got the 28-108 and 80-320, which gave a nice overlap.

I still have the 80-320 and will probably not part with it. The only reason I don't use it much is that I have faster zooms and primes in that focal range. When traveling light, and I need something that goes out to 300mm, the 80-320 gets the call.

The only real 'complaint' I have about this lens is that it does not have a built-in lens hood as previous Pentax long primes and zooms had. I do not like those rubber collapsible hoods, and the only other option was a screw-in hood that does not give effective sun shielding at the longer focal lengths. Otherwise, it's a nice little lens. SMC alone is worth having the lens over the Sigma.

10-24-2007, 07:18 PM   #9
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The APO lenses from sigma are really very good..I have both the the 70-300 lenses including the Tamron and the APO is very much better...

Has anyone used the 28-70 F2.8 tamron? I am thinking about picking one up tomorrow.
10-24-2007, 07:44 PM   #10
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Do you mean 28-75mm f2.8? If so, I have it, highly recommended by most, sharp even wide open, great everyday lens with performance up to par with most primes imo. Check Hamid's recent post with photos https://www.pentaxforums.com/forums/post-your-photos/13753-dog-portraits-round-2-a.html

Regards,
D
10-24-2007, 08:40 PM   #11
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QuoteOriginally posted by Duh_Vinci Quote
Do you mean 28-75mm f2.8? If so, I have it, highly recommended by most, sharp even wide open, great everyday lens with performance up to par with most primes imo. Check Hamid's recent post with photos https://www.pentaxforums.com/forums/post-your-photos/13753-dog-portraits-round-2-a.html

Regards,
D
Yes, Thats the one..Sorry about the type o
I made up my mind to get it.
Thanks, javier
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