Need 1:1 converter for Tamron macro 90mm 2.5

DarkSideofOZ · 04-25-2009, 03:22 PM

I bought a Tamron 90mm f/2.5 SP MF Macro Adaptall mount lens, but I can't seem to find the f18 Tamron 1:1 converter tube. Are there any substitutes available, or does anyone know of a place I can get one online?

I've been watching CL and ebay for sometime, and haven't seen any.

**monochrome** · 04-25-2009, 04:12 PM

You might try to buy a 90/2.5 with the converter and sell the less desireable lens only. I've seen them offered together recently on ebay.

Also consider using the SP 2x #01F TC as a temporary measure. They are fairly common at $25 - $50.

#52B on Adaptall-2.com

#01F Flat Field
Teleconverter on Adaptall-2.com

DarkSideofOZ · 04-25-2009, 04:21 PM

That 52B is indeed the lens I have, with the adapt-all 2 mount.

Will the Flat-Field 2X Tele-Converter give true 1:1 with this lens since the lens is 2:1?

**monochrome** · 04-25-2009, 05:16 PM

Originally posted by DarkSideofOZ

That 52B is indeed the lens I have, with the adapt-all 2 mount.

Will the Flat-Field 2X Tele-Converter give true 1:1 with this lens since the lens is 2:1?

Yes. The following is pasted directly from the 90/2.5 page on the authoritative vintage Tamron website, linked in my post above above:

"Tamron made an optional accessory 1:1 extension tube for this lens. Alternatively you can achieve 1:1 macro with good performance by using either a Tamron SP 2x converter, a Kiron 7 element 2x converter, or a Tokina 7 element 2x converter."

I have both the extension tube and 2 of the converters, one MIB, one Exc. I have the converters for use with my other Tamron lenses as well as with the 90/2.5 (and because I am a bonafide Lens Buying Addict

).

If you would like to discuss taking one of ymconverters off my hands, please feel free to PM

DarkSideofOZ · 04-26-2009, 05:10 AM

I just grabbed a prestine tamron 2x converter off of ebay for 22.50, we'll see how it goes

**monochrome** · 04-26-2009, 05:15 AM

Originally posted by DarkSideofOZ

I just grabbed a prestine tamron 2x converter off of ebay for 22.50, we'll see how it goes

You'll be pleased

04-25-2009, 03:22 PM	#1
DarkSideofOZ Junior Member Join Date: Jan 2008 Location: Dallas, Tx Posts: 35	Need 1:1 converter for Tamron macro 90mm 2.5 I bought a Tamron 90mm f/2.5 SP MF Macro Adaptall mount lens, but I can't seem to find the f18 Tamron 1:1 converter tube. Are there any substitutes available, or does anyone know of a place I can get one online? I've been watching CL and ebay for sometime, and haven't seen any.

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04-25-2009, 04:12 PM	#2
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	You might try to buy a 90/2.5 with the converter and sell the less desireable lens only. I've seen them offered together recently on ebay. Also consider using the SP 2x #01F TC as a temporary measure. They are fairly common at $25 - $50. #52B on Adaptall-2.com #01F Flat Field Teleconverter on Adaptall-2.com

04-25-2009, 04:21 PM	#3
DarkSideofOZ Junior Member Join Date: Jan 2008 Location: Dallas, Tx Posts: 35 Original Poster	That 52B is indeed the lens I have, with the adapt-all 2 mount. Will the Flat-Field 2X Tele-Converter give true 1:1 with this lens since the lens is 2:1?

04-25-2009, 05:16 PM	#4
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Originally posted by DarkSideofOZ That 52B is indeed the lens I have, with the adapt-all 2 mount. Will the Flat-Field 2X Tele-Converter give true 1:1 with this lens since the lens is 2:1? Yes. The following is pasted directly from the 90/2.5 page on the authoritative vintage Tamron website, linked in my post above above: "Tamron made an optional accessory 1:1 extension tube for this lens. Alternatively you can achieve 1:1 macro with good performance by using either a Tamron SP 2x converter, a Kiron 7 element 2x converter, or a Tokina 7 element 2x converter." I have both the extension tube and 2 of the converters, one MIB, one Exc. I have the converters for use with my other Tamron lenses as well as with the 90/2.5 (and because I am a bonafide Lens Buying Addict ). If you would like to discuss taking one of ymconverters off my hands, please feel free to PM

04-26-2009, 05:10 AM	#5
DarkSideofOZ Junior Member Join Date: Jan 2008 Location: Dallas, Tx Posts: 35 Original Poster	I just grabbed a prestine tamron 2x converter off of ebay for 22.50, we'll see how it goes

04-26-2009, 05:15 AM	#6
monochrome Loyal Site Supporter Join Date: Mar 2008 Location: Working From Home Photos: Gallery \| Albums Posts: 26,276	Originally posted by DarkSideofOZ I just grabbed a prestine tamron 2x converter off of ebay for 22.50, we'll see how it goes You'll be pleased