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Forum: Lens Clubs
05-10-2020, 01:22 AM
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Forum: Lens Clubs
05-03-2020, 12:14 PM
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Forum: Lens Clubs
09-02-2016, 07:13 AM
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A* 300mm F4 with 52mm extension tubes on K-1
1/50sec f/6,3 iso200 
1/60sec f/6,3 iso200
Gr. Jos
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Forum: Lens Clubs
07-23-2016, 02:39 PM
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K-1 with SMC Pentax A 50mm F2,8 macro and SMC Pentax A 100mm F4 macro
K-1 A50F2,8 1/250sec f/9 iso400 
K-1 A50F2,8 1/80sec f/9 iso400 
K-1 A100F4 1/800sec f/13 iso1600
Gr. Jos
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Forum: Lens Clubs
07-01-2016, 11:42 PM
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Monsieur Jacques et Monsieur Louis.
At the Kröller-Müller museum - NL
K30 with A50mmF1.7
1/3200sec f/1.8 iso500
Gr. Jos
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Forum: Lens Clubs
06-01-2016, 07:12 AM
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K30 + SMC Pentax A 50mm F1.7
There is a ghost square in Schwetzingen (Germany)
1/800sec f/2.8 iso100 
1/640sec f/2.8 iso100 
1/800sec f/4.5 iso400
Gr. Jos
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Forum: Lens Clubs
05-25-2016, 01:42 PM
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Jos with the setup for the F100mmF2.8
Gr. Jos
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Forum: Lens Clubs
05-23-2016, 03:27 PM
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A snoot brings the light from the pop-up flash over the lens to the subject.
The snoot ends with a diffuser 9 x 8cm.
I use more snoots adapted to the lenght of the lens combination.
The shorter snoots have for diffuser a double layer of polystrene foam, the longer snoots a single layer.
Gr. Jos
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Forum: Lens Clubs
05-23-2016, 11:38 AM
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@ paulh
ivanvernon,
Thanks for the compliments !
Gr.Jos
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Forum: Lens Clubs
05-23-2016, 01:43 AM
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K10D + SMC Pentax A 50mm F2.8 macro (1:2) - 52mm extension tubes - pop up flash
2 flies
1/180sec f/16 
1/180sec f/19
Gr. Jos
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Forum: Lens Clubs
05-22-2016, 02:08 AM
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K30 with A24-50mmF4
On the Verbeke Foundation in Stekene - Belgium
outside 
inside 
Gr. Jos
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Forum: Lens Clubs
05-09-2016, 03:57 PM
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K30 + SMC Pentax A 100mm F4 macro
a Mayfly
a beaty for only one day
from 3 different encounters
gr. Jos
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Forum: Lens Clubs
05-03-2011, 11:16 AM
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Hazelnut weevil - Curculio nucum
 Pentax K10D SMC P-A 50mm F2,8 macro + reversed SMC P-A 50mm F1,7
gr. Jos
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Forum: Lens Clubs
08-15-2010, 05:56 AM
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Leaf-footed bug - Coreus marginatus
Pentax K-x
SMC Pentax-A macro 100mmF4 + close up lens SMC Pentax T80
1/180sec f/13 iso200
gr. Jos
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Forum: Lens Clubs
12-06-2009, 08:08 AM
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Hallo Juergen,
Sorry, I can't help you.
For non-macro shoots I use the A50/1,7 or one of my Takumars 50 or 55 mm.
Jos
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Forum: Lens Clubs
12-06-2009, 06:34 AM
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Hallo Juergen,
All my macro lenses only have a maximum magnification of 1:2.
With extension tubes, according the length in mm (13-21-31), I can go to 1:1 or higher.
In 2008 I used the original Pentax extension tubes (foto 2) without the electrical contacts ( Pentax doesn't make any others).
All the A-lenses became M-lenses with the well-knowned aberration in light measure on the K10D.
Now I found a third brand set with electrical contacts in Poland www.foto-tip.pl and I am very satisfied to work with them (foto 1 and 3):
from the first shot the right exposure.
Jos
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Forum: Lens Clubs
12-02-2009, 11:59 AM
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Schneider, thanks.
For me the prices can rise, I have now these wonderful "A macro lenses" and I will never let them go.
 K10D A50F2,8macro 1/90sec f/8 iso200
extension tube 31mm  K10D A35-70F4 @ 70mm 1/250sec f/8 iso400
extension tube 21mm  K10D A50F2,8macro 1/125sec f/13 iso100
extension tubes 52mm pop-up flash + diffusor
Jos
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Forum: Lens Clubs
11-28-2009, 02:09 PM
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New in the A Club.
For my macro work I use the A 50 F2,8 macro, the A 35-70 F4 (@ 70mm macro) and the A 100 F4 macro.
 K10D A35-70F4 1/90sec f/8 70mm iso100  K10D A50F2,8macro 1/125sec f/16 50mm iso100
extension tubes 52mm pop-up flash + diffusor  K10D A100F4macro 1/250sec f/8 100mm iso400 |
