Sigma 100-300 F4 + 2XTC Bower MC Pz/AF

Sigma 100-300 F4 + 2XTC Bower MC Pz/AF · 10:46 AM

Testing this combo...taken at 300/f8 (so with the TC 600/f16) on a tripod, with 2 sec timer. Cropped about 50%.

gawan · 05-03-2009, 11:49 AM

Interesting, does this TC handle the metering and aperture in auto mode (A-setting)?

pcarfan · 05-03-2009, 12:05 PM

Originally posted by gawan

Interesting, does this TC handle the metering and aperture in auto mode (A-setting)?

Yes it does, and it even auto focuses.

AlexD · 05-03-2009, 03:09 PM

Not crazy about the background, but IQ looks very good, and pretty much no purple-fringe.

Got some potential with that combo!

OrenMc · 05-03-2009, 03:40 PM

Very interesting, what made you try the Bower? Its really not to bad at all.

I have been thinking about trying the Promaster 1.7X AF. You know how I have been about TCs.

Hinman did a real good review on it.
Anyway, how much did the Bower run you? Thanks for posting.

pcarfan · 05-04-2009, 04:15 PM

Originally posted by AlexD

Not crazy about the background, but IQ looks very good, and pretty much no purple-fringe.

Got some potential with that combo!

There is no PF, the sigma 100-300 is immune from it.

These are just test shots, the background is just incidental.

I think there is some potential as well....I am surprised.

pcarfan · 05-04-2009, 04:17 PM

Originally posted by OrenMc

Very interesting, what made you try the Bower? Its really not to bad at all.

I have been thinking about trying the Promaster 1.7X AF. You know how I have been about TCs.

Hinman did a real good review on it.
Anyway, how much did the Bower run you? Thanks for posting.

I got the TC to remove the lens element and use it as an auto focus extension tube for my FA77. I bought it for $50 at the marketplace. Before gutting it, I tried it on my sigma, from my early tests this 2Xtc is doing as good as the sigma 1.4 TC. I will have to test more, but if this is true in all situations, I will be thrilled.

pcarfan
	View full profile
	Contact via private message
	Find other posts by pcarfan
	Find threads started by pcarfan
	Find threads in which pcarfan has posted

05-03-2009, 03:09 PM	#4
AlexD Guest	Re: Sigma 100-300 F4 + 2XTC Bower MC Pz/AF Not crazy about the background, but IQ looks very good, and pretty much no purple-fringe. Got some potential with that combo!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tamron adaptall 300/2.8 or Sigma 100-300/4	pinholecam	Pentax SLR Lens Discussion	10	11-07-2009 05:52 AM
Sigma 100-300 F4 + 2XTC Bower MC Pz/AF	pcarfan	Post Your Photos!	14	05-11-2009 04:35 AM
Tamron 300/2.8, Sigma 100-300 F4, 1.7 AF TC images: A link to the DPR froum.	pcarfan	Pentax SLR Lens Discussion	0	02-07-2009 08:48 PM
Wildlife & sports tele: DA*300 vs Sigma 100-300 f4	dspdx	Pentax SLR Lens Discussion	4	08-28-2008 09:27 PM
Sigma 100-300 APO vs New Pentax 300	dylansalt	Pentax SLR Lens Discussion	10	07-24-2008 05:44 AM

05-03-2009, 11:49 AM	#2
gawan Veteran Member Join Date: Jul 2007 Location: Helsinki Photos: Gallery Posts: 5,400	Interesting, does this TC handle the metering and aperture in auto mode (A-setting)?

05-03-2009, 12:05 PM	#3
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Photos: Gallery \| Albums Posts: 2,978 Original Poster	Originally posted by gawan Interesting, does this TC handle the metering and aperture in auto mode (A-setting)? Yes it does, and it even auto focuses.

05-03-2009, 03:40 PM	#5
OrenMc Veteran Member Join Date: Apr 2008 Location: USA Photos: Gallery Posts: 1,901	Very interesting, what made you try the Bower? Its really not to bad at all. I have been thinking about trying the Promaster 1.7X AF. You know how I have been about TCs. Hinman did a real good review on it. Anyway, how much did the Bower run you? Thanks for posting.

05-04-2009, 04:15 PM	#6
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Photos: Gallery \| Albums Posts: 2,978 Original Poster	Originally posted by AlexD Not crazy about the background, but IQ looks very good, and pretty much no purple-fringe. Got some potential with that combo! There is no PF, the sigma 100-300 is immune from it. These are just test shots, the background is just incidental. I think there is some potential as well....I am surprised.

05-04-2009, 04:17 PM	#7
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Photos: Gallery \| Albums Posts: 2,978 Original Poster	Originally posted by OrenMc Very interesting, what made you try the Bower? Its really not to bad at all. I have been thinking about trying the Promaster 1.7X AF. You know how I have been about TCs. Hinman did a real good review on it. Anyway, how much did the Bower run you? Thanks for posting. I got the TC to remove the lens element and use it as an auto focus extension tube for my FA77. I bought it for $50 at the marketplace. Before gutting it, I tried it on my sigma, from my early tests this 2Xtc is doing as good as the sigma 1.4 TC. I will have to test more, but if this is true in all situations, I will be thrilled.

Thread Tools	Search this Thread
	Search this Thread: Advanced Search