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04-15-2013, 06:42 AM   #1
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Plz help me with Tamron 55bb + 2x

Hi!

I have nust got my first mirror lens. It's a Tamron 55BB with 2x teleconverter 01F.

When I attach the teleconverter to the lens, the ring on the teleconverter gets jammed. Is this normal?
What is the adjustment ring used for?

I am new to photography so maby it's a silly question..

04-15-2013, 07:49 AM   #2
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Not used for anything , it is just a reference for the f stop with the converter. The lens is fixed at f8 .
You will find it very difficult to use as the screen will be dark, better to use it without the 2X. More than enough at 500mm.
Also use a tripod for the best results.
Here is a sample with a K10.

Last edited by bobpur; 11-23-2014 at 07:37 AM.
04-15-2013, 08:32 AM   #3
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Thank you for your answer
04-15-2013, 03:45 PM   #4
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I have one more question

I didn't get any front or rear caps. Can anyone tell me what caps that will fit?
Ebay maby

04-15-2013, 04:23 PM   #5
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I am pretty sure the front cap is 82mm. I have a cap somewhere. I keep the original hood on the lens and when it's off the camera, I put it on a shelf with the front facing down.

For rear caps, the 01F teleconverter complicates things. I have a set of Adaptall caps for mine, front and rear. I have an extra Adaptall-2 K mount adapter so most of the time, one adapter is on the lens and a K-mount cap pn that. Then the other adapter is on the TC with a cap on that.
04-18-2013, 11:32 AM   #6
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QuoteOriginally posted by Skruffens Quote
I have one more question

I didn't get any front or rear caps. Can anyone tell me what caps that will fit?
Ebay maby
Tamron SP Adaptall-2 500mm F/8 Model 55BB
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