Tamron Extension tube for SP 90/2.5 (1:2-1:1) Lens

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Tamron Extension tube for SP 90/2.5 (1:2-1:1) lens

Format: 35mm SLR

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: Tamron Adaptall-2

First year of production: 1988

Optical design: extension tube no optical elements

Features: Macro lens

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Owners (2)

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Average price: $24

Specifications:

Focal length	Max. aperture	Min. aperture	Blades	Min. Focus (m.)	Filter Ø (mm.)	Weight (gr/oz)	Length (mm/in)
43mm	f/2.5		no			157/5,5	44.20/1,7

Additional information:

This is just an Extension tube specially designed for Tamron SP 90mm F2.5 model 52BB.

It can also be used on earlier model 52B instead of SP 2X tele-converter #01F to achieve 1:1 magnification.

I know that it is not technically a lens but it is essential part for both model 52B and 52BB lens optical system.

You will be able to use this tube on any other Tamron Adaptall2 lens with F2.5 aperture like 135mm F2.5 close focus lens model 03B

Posted by: Radovan Date of publication: 16.06.2013

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Mechanical quality	5.00	1
Optical quality	5.00	1
Usability	5.00	1
Pricing / Value	5.00	1
Bokeh	0.00	0
Overall lens rating	5.00

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