Forum: Pentax SLR Lens Discussion
02-14-2015, 07:21 AM
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A*1200mm is a prime and *, but "only" has f8. Same for the A*600mm 5.6.
I think * are for fast lenses with use of special glas (ED, ...) and complex optical formula.
The 560mm is optical an easy design.
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Forum: Pentax SLR Lens Discussion
12-25-2011, 02:40 AM
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DA*300mm 4.0
and
FA*300mm 2.8
and
Sigma 300mm 2.8
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Forum: Pentax Medium Format
12-16-2011, 01:26 PM
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Forum: Pentax SLR Lens Discussion
12-08-2011, 01:19 AM
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You can try the Sigma APO converters (1.4x or 2x).
On my DA*300, the Sigma 1.4x is better then the Pentax-A 1.4x, but without SDM-AF and LiveView.
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Forum: Pentax Medium Format
12-07-2011, 11:50 AM
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Forum: Pentax SLR Lens Discussion
09-26-2011, 12:22 PM
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You can send me a FA*24, then I take the photo.
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Forum: Pentax Medium Format
09-04-2011, 12:11 PM
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100mm 4.0 Macro. 1:1 without extension tubes.
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Forum: Pentax SLR Lens Discussion
08-14-2011, 03:08 PM
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Forum: Pentax SLR Lens Discussion
07-22-2011, 02:35 PM
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It looks like a destroyed filter. Look at the filter threat.
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Forum: Pentax SLR Lens Discussion
06-26-2011, 01:35 AM
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Forum: Pentax SLR Lens Discussion
06-25-2011, 01:13 PM
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The Pentax-F 35-70mm F3.5-4.5 is best of the three if you don't need 18mm or 28mm.
The AF of the 28-70mm 4.0 is extremly fast.
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Forum: Pentax SLR Lens Discussion
06-22-2011, 11:09 AM
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It could be the K 15mm AL, but not wide open.
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Forum: Pentax SLR Lens Discussion
06-19-2011, 04:46 AM
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Forum: Pentax SLR Lens Discussion
06-18-2011, 04:23 AM
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This clue, the street and the flower helped me.
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Forum: Pentax SLR Lens Discussion
06-18-2011, 04:18 AM
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Forum: Pentax SLR Lens Discussion
06-18-2011, 03:46 AM
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I think a 150-300mm 2.8 with build in teleconverter (like the new Canon 200-400) would be an fantastic lens.
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Forum: Pentax SLR Lens Discussion
06-18-2011, 03:42 AM
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Forum: Pentax SLR Lens Discussion
06-15-2011, 11:50 AM
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I normally don't use the lens for flowers, but I want to test the lens a little bit at the minimum focusing distance.
And I thought it would be interesting for you to see a 600mm in a not so common use.
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Forum: Pentax SLR Lens Discussion
06-15-2011, 03:57 AM
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Forum: Pentax SLR Lens Discussion
06-15-2011, 02:23 AM
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Forum: Pentax SLR Lens Discussion
06-14-2011, 11:57 PM
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sorry for the mistake.
New hint: The lens can be mounted on all digital Pentax single lens reflex bodys.
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Forum: Pentax SLR Lens Discussion
06-14-2011, 02:06 PM
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It's not the A 400mm.
I made a little mistake with the distance of the second pic, it is more 5m than 15feet.
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Forum: Pentax SLR Lens Discussion
06-14-2011, 01:32 PM
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Forum: Pentax SLR Lens Discussion
06-14-2011, 01:25 PM
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?? ~ 5 yards and ~4.6m (+/- 10%)
Yes, it is smc
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Forum: Pentax SLR Lens Discussion
06-14-2011, 01:09 PM
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another hint:
distance of the first pic: 24 feet
and for the second pic: 15 feet
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