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Forum: Pentax SLR Lens Discussion 02-14-2015, 07:21 AM  
the * series
Posted By feverbeaver
Replies: 31
Views: 2,642
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.
Forum: Pentax SLR Lens Discussion 12-25-2011, 02:40 AM  
Poll: Poll: 300mm AF Prime Lens
Posted By feverbeaver
Replies: 20
Views: 3,699
DA*300mm 4.0
and
FA*300mm 2.8
and
Sigma 300mm 2.8
Forum: Pentax Medium Format 12-16-2011, 01:26 PM  
different between Pentax 6x7 300 F4 ED(IF) and 645 300 F4 ED(IF)
Posted By feverbeaver
Replies: 9
Views: 5,025
If money is unlimited, then you can try to find one of the Carl Zeiss 300mm f/2.8 FE Tele-Superachromat for 6x6:
Zeiss 300mm f/2.8 FE Tele-Superachromat Lens for 200 1041695 B&H
Carl Zeiss 300mm f/2.8 FE Tele-Superachromat with APO-Mutar 1.7x E Overview at DentonImages.com
Forum: Pentax SLR Lens Discussion 12-08-2011, 01:19 AM  
FA* 300 2.8 vs A*300 f/2.8
Posted By feverbeaver
Replies: 19
Views: 5,555
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.
Forum: Pentax Medium Format 12-07-2011, 11:50 AM  
645D: How weather proof is weather proof ?
Posted By feverbeaver
Replies: 18
Views: 3,526
The 645D on the highest mountain of Germany:
645D Härtetest - PENTAX RICOH IMAGING DEUTSCHLAND GmbH
Forum: Pentax SLR Lens Discussion 09-26-2011, 12:22 PM  
Who own's FA*24, FA*85 and A*135?
Posted By feverbeaver
Replies: 13
Views: 2,680
You can send me a FA*24, then I take the photo.
Forum: Pentax Medium Format 09-04-2011, 12:11 PM  
"Special" lenses for Pentax 67?
Posted By feverbeaver
Replies: 10
Views: 2,148
100mm 4.0 Macro. 1:1 without extension tubes.
Forum: Pentax SLR Lens Discussion 08-14-2011, 03:08 PM  
Aspherical or Not Aspherical 15mm SMC
Posted By feverbeaver
Replies: 7
Views: 2,479
It is an aspherical.
Forum: Pentax SLR Lens Discussion 07-22-2011, 02:35 PM  
Rip fa* 80-200/2.8
Posted By feverbeaver
Replies: 26
Views: 7,014
It looks like a destroyed filter. Look at the filter threat.
Forum: Pentax SLR Lens Discussion 06-26-2011, 01:35 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
DA 35mm Ltd.
Forum: Pentax SLR Lens Discussion 06-25-2011, 01:13 PM  
Pentax 28-70mm f/4 vs kit lens?
Posted By feverbeaver
Replies: 23
Views: 7,639
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.
Forum: Pentax SLR Lens Discussion 06-22-2011, 11:09 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
It could be the K 15mm AL, but not wide open.
Forum: Pentax SLR Lens Discussion 06-19-2011, 04:46 AM  
Comparisons between Bokina macro and Voigtlander 125mm?
Posted By feverbeaver
Replies: 3
Views: 3,828
I 'only' have the Tokina AT-X 90mm 2.5, the Leica 100m 2.8 APO and the FA 100mm 2.8 Macro.

The Leica is the sharpest 100mm lens I have. At 2.8 it outresolves the sensor of the K-5 (center and border). Aberrations are very good controlled, but the Sigma 180mm 3.5 is better in terms of bokeh fringing.

For bokeh the Tokina is the best.

With the dedicated close up lens (Elpro) the Leica goes to 1,1:1 without loss of sharpness or light (other than 2x extender).

http://en.leica-camera.com/assets/file/download.php?filename=file_1836.pdf
http://en.leica-camera.com/assets/file/download.php?filename=file_1835.pdf
Forum: Pentax SLR Lens Discussion 06-18-2011, 04:23 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
This clue, the street and the flower helped me.
Forum: Pentax SLR Lens Discussion 06-18-2011, 04:18 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
SMC Pentax 135mm 2.5?
Forum: Pentax SLR Lens Discussion 06-18-2011, 03:46 AM  
Pentax smc DA*135-270mm f/2.8 ED [IF] SDM
Posted By feverbeaver
Replies: 33
Views: 7,623
I think a 150-300mm 2.8 with build in teleconverter (like the new Canon 200-400) would be an fantastic lens.
Forum: Pentax SLR Lens Discussion 06-18-2011, 03:42 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
Is it the A28mm 2.0?
Forum: Pentax SLR Lens Discussion 06-15-2011, 11:50 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
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.
Forum: Pentax SLR Lens Discussion 06-15-2011, 03:57 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
Forum: Pentax SLR Lens Discussion 06-15-2011, 02:23 AM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
yes:)
Forum: Pentax SLR Lens Discussion 06-14-2011, 11:57 PM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
sorry for the mistake.

New hint: The lens can be mounted on all digital Pentax single lens reflex bodys.
Forum: Pentax SLR Lens Discussion 06-14-2011, 02:06 PM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
It's not the A 400mm.

I made a little mistake with the distance of the second pic, it is more 5m than 15feet.
Forum: Pentax SLR Lens Discussion 06-14-2011, 01:32 PM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
no takumar and no 300mm
Forum: Pentax SLR Lens Discussion 06-14-2011, 01:25 PM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
?? ~ 5 yards and ~4.6m (+/- 10%)


Yes, it is smc
Forum: Pentax SLR Lens Discussion 06-14-2011, 01:09 PM  
Guess the lens?
Posted By feverbeaver
Replies: 699
Views: 59,917
another hint:
distance of the first pic: 24 feet
and for the second pic: 15 feet
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