For Sale - Sold: A contact TC's modified as 25mm ext. tubes.

pcarfan · 10-10-2009, 03:07 PM

PentaxForums.com Marketplace Listing

Item for Sale
A contact TC's modified as 25mm ext. tubes.

Asking Price
$33, $32, $30, $30. (FIRM) < last one pending sale>

Item Description
I have four 'modified' 25mm ext. tubes for sale. These were 2X TC's with their center lens element removed, so they act like a ext. tube. It has A contacts so works like an 'A' lens and will do everything except AF, including P-TTL flash.

All four comes with the front cap, one comes with the proper size rear cap ($33), one with a smaller rear cap leaving the electrical contacts open ($32) and the other two doesn't have any rear caps ($30).

The exact brand doesn't matter, but two were converted from a Takumar-A TC, one Vivitar MC TC, and the fourth a Focal MC TC.

Are you the original owner of the item being sold?
No

Are you selling or trading this item?
Selling

Item Condition
Used
Fair

Item Location
Dayton, OH

Shipping Charge
included for conus

Shipping Services
USPS

Shipping Destinations
United States

Accepted Payment Types
PayPal

Return Policy/Additional Details
No returns

Please send me a private message if interested in the item!

Last edited by pcarfan; 10-12-2009 at 04:15 AM.

pcarfan · 10-10-2009, 03:12 PM

These image was taken with one of these attached to the Pentax-F 135/2.8

roger.hayslip · 10-10-2009, 06:54 PM

pm sent for the $33 ext tube.

Igilligan · 10-10-2009, 07:04 PM

So technically you could stack all of these 4 and have a 100mm worth of "A" ext tubes???

pcarfan · 10-11-2009, 08:07 AM

$33 dollar one sold.

pcarfan · 10-11-2009, 08:10 AM

Originally posted by Igilligan

So technically you could stack all of these 4 and have a 100mm worth of "A" ext tubes???

That was my initial idea, but the problem is that it leaves a weird artifact in the shape of a bright halo in the middle of a dark frame when all are stacked. When critically evaluated in a regular scene one can see this faint glow. It works well only with the one 25mm ext. tube. Thus the reason to sell all this. I wasted quite a bit of $ to get the right ones (bought some that didn't have the electrical connection etc....but all these work well).

**Ash** · 10-11-2009, 08:23 AM

PM sent re: ext tube

pcarfan · 10-11-2009, 11:07 AM

The $32 dollar one sold as well. The two Ext. tubes remain (modified TC's), both with no end caps, but has the front caps unique to TC's, you can put any lens end cap on it. The two remaining ones cost $30 each. It works well with my FA77 too, and will work with most lens (even my sigma 100-300), and will close the min. focus distance and will let you get much closer, real handy with the FA77 with such a long min. focus distance.

pcarfan · 10-11-2009, 11:38 AM

Min focus distance of FA77.

With the 25mm ext. tube....useful in any lens bag

10-10-2009, 03:07 PM	#1
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Posts: 2,978 Feedback Score: 39 (100%)	[SOLD] A contact TC's modified as 25mm ext. tubes. PentaxForums.com Marketplace Listing Item for Sale A contact TC's modified as 25mm ext. tubes. Asking Price $33, $32, $30, $30. (FIRM) < last one pending sale> Item Description I have four 'modified' 25mm ext. tubes for sale. These were 2X TC's with their center lens element removed, so they act like a ext. tube. It has A contacts so works like an 'A' lens and will do everything except AF, including P-TTL flash. All four comes with the front cap, one comes with the proper size rear cap ($33), one with a smaller rear cap leaving the electrical contacts open ($32) and the other two doesn't have any rear caps ($30). The exact brand doesn't matter, but two were converted from a Takumar-A TC, one Vivitar MC TC, and the fourth a Focal MC TC. Are you the original owner of the item being sold? No Are you selling or trading this item? Selling Item Condition Used Fair Item Location Dayton, OH Shipping Charge included for conus Shipping Services USPS Shipping Destinations United States Accepted Payment Types PayPal Return Policy/Additional Details No returns Please send me a private message if interested in the item! Last edited by pcarfan; 10-12-2009 at 04:15 AM.

10-10-2009, 03:12 PM	#2
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Posts: 2,978 Feedback Score: 39 (100%) Original Poster	Images taken with Pentax-F 135/2.8 and one of these ext. tubes. These image was taken with one of these attached to the Pentax-F 135/2.8 Last edited by pcarfan; 10-10-2009 at 03:22 PM.

10-11-2009, 11:07 AM	#8
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Posts: 2,978 Feedback Score: 39 (100%) Original Poster	The $32 dollar one sold as well. The two Ext. tubes remain (modified TC's), both with no end caps, but has the front caps unique to TC's, you can put any lens end cap on it. The two remaining ones cost $30 each. It works well with my FA77 too, and will work with most lens (even my sigma 100-300), and will close the min. focus distance and will let you get much closer, real handy with the FA77 with such a long min. focus distance. Last edited by pcarfan; 10-11-2009 at 11:18 AM.

10-11-2009, 11:38 AM	#9
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Posts: 2,978 Feedback Score: 39 (100%) Original Poster	Min focus distance of FA77. With the 25mm ext. tube....useful in any lens bag Last edited by pcarfan; 10-11-2009 at 11:54 AM.

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10-10-2009, 06:54 PM	#3
roger.hayslip Junior Member Join Date: Sep 2007 Location: Central Ohio Posts: 31 Feedback Score: 2 (100%)	pm sent for the $33 ext tube.

10-10-2009, 07:04 PM	#4
Igilligan Guest Feedback Score: (%)	So technically you could stack all of these 4 and have a 100mm worth of "A" ext tubes???

10-11-2009, 08:07 AM	#5
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Posts: 2,978 Feedback Score: 39 (100%) Original Poster	$33 dollar one sold.

10-11-2009, 08:10 AM	#6
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Posts: 2,978 Feedback Score: 39 (100%) Original Poster	Originally posted by Igilligan So technically you could stack all of these 4 and have a 100mm worth of "A" ext tubes??? That was my initial idea, but the problem is that it leaves a weird artifact in the shape of a bright halo in the middle of a dark frame when all are stacked. When critically evaluated in a regular scene one can see this faint glow. It works well only with the one 25mm ext. tube. Thus the reason to sell all this. I wasted quite a bit of $ to get the right ones (bought some that didn't have the electrical connection etc....but all these work well).

10-11-2009, 08:23 AM	#7
Ash Loyal Site Supporter Join Date: Mar 2007 Location: Toowoomba, Queensland Posts: 23,920 Feedback Score: 36 (100%)	PM sent re: ext tube