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12-12-2009, 08:15 AM   #1
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Question SMC Pentax-F 70-210mm F4-5.6

Hi

Two questions about this lens so I can educate myself:

1) It's constant aperture at f4 ?

2) what is a normal price for this lens ?

Thanks

12-12-2009, 08:29 AM   #2
Ole
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It is not a constant aperture. It is f/4 at 70mm, and f/5.6 at 210mm.

Perhaps check the lens review database for price information:

Pentax Lens Review and Specification Database - Main Index

It is a nice lens, compact, solid. I used it a lot until the event of the DA*60-250.
12-12-2009, 08:35 AM   #3
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Hmmm, I see. Thanks

I was looking for this lens as a sheep option for the equivalent to canon 70-200 f4.
Seems Pentax doesn't have then an (sheep) equivalent, right ?
12-12-2009, 09:31 AM   #4
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It's maximum aperture is f4 from 70-110mm, f4.5 from 110-170mm and f5.6 from 170-210mm. I sort of hate the F series style, but performance is excellent. AF is brutal and loud. The lens is fairly heavy. My copy is somewhat battered but still works well. I've also had a couple of pristine versions to compare.

I'd like to see a comparison between this lens and the DA 50-200. If the DA was close enough or maybe better, I would consider the WR version. It handles much better than I thought it would, slightly better range, it's sealed and has QSF. The range depends on which lenses you already have to work with it.

12-12-2009, 11:54 AM   #5
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QuoteOriginally posted by netuser Quote
Hmmm, I see. Thanks

I was looking for this lens as a sheep option for the equivalent to canon 70-200 f4.
Seems Pentax doesn't have then an (sheep) equivalent, right ?
If autofocus isn't a requirement for you, you might want to consider the Pentax "A" 70-210 f4.0. This lens is a constant aperture f4.0 lens, and altho it is bigger and heavier than the DA 55-200, I much prefer it to the 55-200. I had two different copies of that lens and wasn't completely happy with either. For my money the Pentax "A" 70-210 is a much much superior lens. In addition the "A" has a "macro" (read close focus) function at 70mm.
The "A" is readily available in the second hand market, despite it's size and weight compared to the 55-200, it's a much better buy IMHO.



NaCl(and very good bokeh for a zoom)H2O
12-13-2009, 02:44 PM   #6
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QuoteOriginally posted by NaClH2O Quote
If autofocus isn't a requirement for you, you might want to consider the Pentax "A" 70-210 f4.0. This lens is a constant aperture f4.0 lens, and altho it is bigger and heavier than the DA 55-200, I much prefer it to the 55-200. I had two different copies of that lens and wasn't completely happy with either. For my money the Pentax "A" 70-210 is a much much superior lens. In addition the "A" has a "macro" (read close focus) function at 70mm.
The "A" is readily available in the second hand market, despite it's size and weight compared to the 55-200, it's a much better buy IMHO.

NaCl(and very good bokeh for a zoom)H2O
I second Salty's support of the A 70-210/4. I lent mine to my daughter for a day, and now it is hers as a birthday gift. For some personal quirk, I just never used it. I used either the DA* 50-135 or the 400, nothing in between. I'm just plain weird.
12-13-2009, 04:13 PM   #7
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I 3rd on 70-210 f4, heavy, build solid, does creep, nice rich colors and good contrast.
If it had AF and was* f 2.8 it would cost thousands..

Cheers, Mike.
12-13-2009, 04:17 PM   #8
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I was looking for 70-210 f4 but I would like AF How come there isn't an option for Pentax ? So strange ...

12-13-2009, 05:03 PM   #9
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There is an option: DA* 60-250 f/4. It even has a bit more range than you're bargaining for.
12-13-2009, 05:08 PM   #10
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QuoteOriginally posted by Ole Quote
There is an option: DA* 60-250 f/4. It even has a bit more range than you're bargaining for.
One problem... too expensive
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