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sorry if this a really boring question but I can find the right answer if I do a search.
I've got the old style Tamron 90mm f 2.5 and I am still perfectly happy with the quality.
But sometimes I can simply not get close enough, as this lens only does 1:2.
years ago I had a 200mm Mikro Nikkor, for which I do own the right TC-301 converter. the result is an f/8 400mm macro.
what would you do these days:
get the Tamron 90mm 2.8 (how is the manual focus on this one?)
get a 180mm Tamron
get the old 200mm Micro Nikkor (affordable...)
or hover on fleabay till I find a Micro Nikkor in the modern version
or simply buy a converter to fit the 90mm?
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To answer your question (or at least offer an opinion!) I would need to know what it is that you intend to do with the lens?
I intend to take more insects and even closer material pictures ...
well my portfolio might give you an idea
Get the Sigma 150mm f2.8 macro, an excellent lens. It's available on Ebay for a good price right now because the OS version is about to be released.
thanks Stray Cat but I have had two bad sigmas... maybe one was just a monday version as it produced horrible colour fringes when used on contrasty stuff and the other one was blurry in the corners. OK they were both fairly recent zooms but I think I'm not going there again.
I haven't heard of anyone getting a bad copy of the 150/2.8. Many people on here use it, and the reviews are all great.
Quote: I've got the old style Tamron 90mm f 2.5 and I am still perfectly happy with the quality
If your still happy why upgrade and splash out a load of cash, get an extension tube.
Dear Paul, which tube can you use without losing the DOF button and metering? Is there a system which couples the aperture lever like the TC 301?
I had an ol Nikon one for the 55mm Micro nikkor and was down to completely manual metering focus on open lcose again and so forth, well usually the butterfly is gone till then that is why I rather kept the Tamron when I went digital.
How is the 90mm working at the moment when you use it, is that stop down metering.
no it does TTL metering just fine. all the macros in my portfolio are taken with that lens.
Yes the ttl will still work but its still stop down metering, most coupled tubes should be ok.
would you know which length of tube is required to go from 1:2 to 1:1? and thanks again, I just wsn't sure whether they still worked on my body.
have to go now, get some kip before going back to work!
If you are using the old adaptall 2 tamron 90mm there is a dedicated extension tube for that which fits between the removable mount an the lens. There is also a very high quality 2x converter, the 01F, which works in a similar way, which would give you a 180mm. Under test in a camera magazine years ago the 01F beat all comers but i'm not sure how well it will hold up on a DSLR for colour fringing.
thanks a lot randomrubble, I will look into this during lunch break!
I had a x2 converter and figured removing the lens elements, turning the converter into an extension tube would convert a 1:2 to a 1:1, I don`t think I was far out.
There`s more info here and a calculator.
Quote: If you are using the old adaptall 2 tamron 90mm there is a dedicated extension tube for that which fits between the removable mount an the lens
Yes and they were often sold together as a kit.
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