The A Club

schneider · 11-30-2009, 12:43 AM

Thanks Class A! It's one of my favorite shots and I am so happy that it worked out (although some complain that the bee is not 100% sharp).

Welcome to the club Jos. You are making great advertisement for the A-series with your wonderful pics. I am sure Ebay prices will rise sharply thanks to you......

JosQ · 12-02-2009, 11:59 AM

Originally posted by schneider

Welcome to the club Jos. You are making great advertisement for the A-series with your wonderful pics. I am sure Ebay prices will rise sharply thanks to you......

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

juekapasta · 12-05-2009, 03:03 PM

Hallo Jos,

really great shoots. I although have the A 50/f2,8 macro but I havn't used it very often. But to use it with this exgtension tubes you have it seems very attractive. I'm a newbie so I ask you for some more explaination. What are exactly extension tubes? What are the difference between 31mm and 52mm and what brand are those? Maybe you could post a picture of your assemble?

Juergen

JosQ · 12-06-2009, 06:34 AM

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

juekapasta · 12-06-2009, 07:04 AM

Hallo Jos,

thanks a lot for this info. It help's me a lot.
In dpr-forum actually there's a discussion which concerns the image quality of this lens. Someone posted that the A 50/2,8 macro regarding to the FA 50/2,8 macro has no good bokeh in reason of it's only 6 aperture blades. The bokeh of your macro shoots seems very creamy - for me it could not be better... Could you confirm it for non-macro shoots?

Thanks Jürgen

JosQ · 12-06-2009, 08:08 AM

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

Class A · 12-06-2009, 01:31 PM

Originally posted by JosQ

Now I found a third brand set with electrical contacts in Poland www.foto-tip.pl...

Here's the precise link to the PK/A EXTENSION TUBE SET. IIRC, Pentax did a P/KA version as well.

twilight_samurai · 12-06-2009, 02:00 PM

Originally posted by JosQ

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 1/125sec f/13 iso100
extension tubes 52mm pop-up flash + diffusor

Jos

Amazing macro shots, JosQ! I particularly like how it looks like the fly is staring you down..

twilight_samurai · 12-06-2009, 02:04 PM

Some images to get you in the holiday spirit.. courtesy of my K200d + A50/1.4:

adwb · 12-07-2009, 04:57 AM

Walking along and spotted this bit of prime Victorian moulding on a old school building, now a library, image is untouched, straight from the K10d.
k10d ,Pentax A 80-200 zoom [brand new first time out in the open air!!]1/400;F5.0;s 800.

image shrunk to get it to upload, what do you use to do this?and to what size?
Alistair
crop below just to show the detail

kevinschoenmakers · 12-07-2009, 08:06 AM

I recently replaced two fully manual 28mm and 50mm primes with the A28 2.8 and the A50 1.7. I love the mix of manual focus and AE. Here's my first keeper from the latter:

**wtlwdwgn** · 12-08-2009, 11:50 AM

Beautiful images JosQ!

8540tomg · 12-12-2009, 08:22 AM

Twilight got the XMAS thing going above.

Here's a few from the tree we put up the other day.

Tom G

StevenVH · 12-26-2009, 10:05 AM

bumpin' the A Club with a shot using the A 100/2.8 wide open.

cheers

dragonfly · 12-30-2009, 09:21 PM

Just bought my first A lens a 50MM 1.7 and I am loving it. The focus is super smooth and the pictures come out so much sharper than my kit lens.

Here is an old lamp that may or may not work:

12-07-2009, 04:57 AM	#310
adwb Veteran Member Join Date: Sep 2009 Location: Bristol UK Photos: Gallery Posts: 1,636	Walking along and spotted this bit of prime Victorian moulding on a old school building, now a library, image is untouched, straight from the K10d. k10d ,Pentax A 80-200 zoom [brand new first time out in the open air!!]1/400;F5.0;s 800. image shrunk to get it to upload, what do you use to do this?and to what size? Alistair crop below just to show the detail Last edited by adwb; 03-31-2012 at 07:01 AM.

12-12-2009, 08:22 AM	#313
8540tomg Veteran Member Join Date: Feb 2008 Location: Waterloo, Ontario Photos: Gallery Posts: 4,461	A 100/2.8 macro Twilight got the XMAS thing going above. Here's a few from the tree we put up the other day. Tom G

12-26-2009, 10:05 AM	#314
StevenVH Veteran Member Join Date: Jan 2009 Location: N Carolina, USA Photos: Gallery Posts: 475	bottle in the snow bumpin' the A Club with a shot using the A 100/2.8 wide open. cheers

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11-30-2009, 12:43 AM	#301
schneider Inactive Account Join Date: Oct 2009 Location: Amsterdam Posts: 200	Thanks Class A! It's one of my favorite shots and I am so happy that it worked out (although some complain that the bee is not 100% sharp). Welcome to the club Jos. You are making great advertisement for the A-series with your wonderful pics. I am sure Ebay prices will rise sharply thanks to you......

12-02-2009, 11:59 AM	#302
JosQ Forum Member Join Date: Nov 2009 Location: Hasselt - Belgium Photos: Gallery \| Albums Posts: 66	Originally posted by schneider Welcome to the club Jos. You are making great advertisement for the A-series with your wonderful pics. I am sure Ebay prices will rise sharply thanks to you...... 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

12-05-2009, 03:03 PM	#303
juekapasta New Member Join Date: Oct 2009 Posts: 11	Hallo Jos, really great shoots. I although have the A 50/f2,8 macro but I havn't used it very often. But to use it with this exgtension tubes you have it seems very attractive. I'm a newbie so I ask you for some more explaination. What are exactly extension tubes? What are the difference between 31mm and 52mm and what brand are those? Maybe you could post a picture of your assemble? Juergen

12-06-2009, 06:34 AM	#304
JosQ Forum Member Join Date: Nov 2009 Location: Hasselt - Belgium Photos: Gallery \| Albums Posts: 66	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

12-06-2009, 07:04 AM	#305
juekapasta New Member Join Date: Oct 2009 Posts: 11	Hallo Jos, thanks a lot for this info. It help's me a lot. In dpr-forum actually there's a discussion which concerns the image quality of this lens. Someone posted that the A 50/2,8 macro regarding to the FA 50/2,8 macro has no good bokeh in reason of it's only 6 aperture blades. The bokeh of your macro shoots seems very creamy - for me it could not be better... Could you confirm it for non-macro shoots? Thanks Jürgen

12-06-2009, 08:08 AM	#306
JosQ Forum Member Join Date: Nov 2009 Location: Hasselt - Belgium Photos: Gallery \| Albums Posts: 66	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

12-06-2009, 01:31 PM	#307
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	Originally posted by JosQ Now I found a third brand set with electrical contacts in Poland www.foto-tip.pl... Here's the precise link to the PK/A EXTENSION TUBE SET. IIRC, Pentax did a P/KA version as well.

12-06-2009, 02:00 PM	#308
twilight_samurai Senior Member Join Date: Mar 2009 Location: Toronto Posts: 288	Originally posted by JosQ 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 1/125sec f/13 iso100 extension tubes 52mm pop-up flash + diffusor Jos Amazing macro shots, JosQ! I particularly like how it looks like the fly is staring you down..

12-06-2009, 02:04 PM	#309
twilight_samurai Senior Member Join Date: Mar 2009 Location: Toronto Posts: 288	Some images to get you in the holiday spirit.. courtesy of my K200d + A50/1.4:

12-07-2009, 08:06 AM	#311
kevinschoenmakers Veteran Member Join Date: Mar 2009 Location: Shanghai Photos: Gallery Posts: 1,509	I recently replaced two fully manual 28mm and 50mm primes with the A28 2.8 and the A50 1.7. I love the mix of manual focus and AE. Here's my first keeper from the latter:

12-08-2009, 11:50 AM	#312
wtlwdwgn Site Supporter Join Date: Jan 2007 Location: Billings, MT Photos: Gallery \| Albums Posts: 13,851	Beautiful images JosQ!

12-30-2009, 09:21 PM	#315
dragonfly Veteran Member Join Date: Jun 2009 Location: on the wall Photos: Gallery Posts: 715	Just bought my first A lens a 50MM 1.7 and I am loving it. The focus is super smooth and the pictures come out so much sharper than my kit lens. Here is an old lamp that may or may not work: