Tamron SP AF 90 F2.5 macro

kimheng · 5th April 2009

like to as a newbie question.

been trying to find out for hours online regarding this wonderful lens and if it would fit sony a300. i searched on ebay and apparently they have an adapt all mount to fit the tamron on to a sony dslr. would appreciate if anyone have any inputs into this combination.

like would it be able to auto focus or will it be manual?

TIA

unimatrix · 5th April 2009

why don't you look for one in alpha mount..
they have tamron 90 F2.5 in alpha mount too right? probably no longer in production, so have to resort to 2nd hand market..

alpha mount one should be able to AF..

dyxum

Galdor · 5th April 2009

Tamron 90mm f2.5 is in adaptall mount. This is a manual focus lens and adaptall mount meants that you would need an adaptor to convert the adaptall mount to Alpha mount. As macro photography usually requires manual focus since AF is too slow, it would be quite ok to get the adaptall mount version.

If you prefer the AF version the Tamron 90mm f2.8 Di version would be it but it will cost more.

mazhenghe · 5th April 2009

I used to have an adaptall mount Tamron lens, though it was the 90mm/f2.8 version. Sold it off as it was underutilised.
When used together with the a300, I'd to set the top-left dial to 'M' mode. Before that, had to make sure in the menu settings, the control dial is set to shuttter speed, coz you cant use the dial to control the manual lens' aperture anyway.

Rashkae · 5th April 2009

I'd suggest just getting the 90mm f/2.8 AF lens.

kimheng · 6th April 2009

thanks for the help bros. i guess i will look into the 2.8 di. 2.5 is a little too advanced for me to use.

5th April 2009	#1
kimheng New Member Join Date: Jan 2009 Posts: 19	Tamron SP AF 90 F2.5 macro like to as a newbie question. been trying to find out for hours online regarding this wonderful lens and if it would fit sony a300. i searched on ebay and apparently they have an adapt all mount to fit the tamron on to a sony dslr. would appreciate if anyone have any inputs into this combination. like would it be able to auto focus or will it be manual? TIA

5th April 2009	#2
unimatrix Member Join Date: Mar 2008 Location: Singapore Posts: 212	Re: Tamron SP AF 90 F2.5 macro why don't you look for one in alpha mount.. they have tamron 90 F2.5 in alpha mount too right? probably no longer in production, so have to resort to 2nd hand market.. alpha mount one should be able to AF.. dyxum

5th April 2009	#3
Galdor Senior Member Join Date: Jul 2006 Location: Planet Gaia Posts: 8,318	Re: Tamron SP AF 90 F2.5 macro Tamron 90mm f2.5 is in adaptall mount. This is a manual focus lens and adaptall mount meants that you would need an adaptor to convert the adaptall mount to Alpha mount. As macro photography usually requires manual focus since AF is too slow, it would be quite ok to get the adaptall mount version. If you prefer the AF version the Tamron 90mm f2.8 Di version would be it but it will cost more. __________________ Good lens or Lousy lens also can't beat @ great photographer with kit lens - Galdor@Alphadslr

5th April 2009	#4
mazhenghe Member Join Date: Oct 2007 Location: Yishun Posts: 198	Re: Tamron SP AF 90 F2.5 macro I used to have an adaptall mount Tamron lens, though it was the 90mm/f2.8 version. Sold it off as it was underutilised. When used together with the a300, I'd to set the top-left dial to 'M' mode. Before that, had to make sure in the menu settings, the control dial is set to shuttter speed, coz you cant use the dial to control the manual lens' aperture anyway. __________________ Pictures from a Redplate SLR shooter.

5th April 2009	#5
Rashkae Senior Member Join Date: Nov 2005 Posts: 8,313	Re: Tamron SP AF 90 F2.5 macro I'd suggest just getting the 90mm f/2.8 AF lens. __________________ Alpha

6th April 2009	#6
kimheng New Member Join Date: Jan 2009 Posts: 19	Re: Tamron SP AF 90 F2.5 macro thanks for the help bros. i guess i will look into the 2.8 di. 2.5 is a little too advanced for me to use.