Whoops, yes - #01F, not 10F! My 90mm/2.5 is coded 52BB and has the 55mm
filter ring. Snagged it with the extension tube, caps and hood for US$100 -
almost unmarked :)
Haven't used it with the tube or the 2X yet - first attempt at macro I
messed up depth of field. Nice portrait lens but! The early version has a
49mm filter ring. There is a later version - 90/2.8 which goes to 1:1
without the extension tube but I believe it isn't as sharp. That version
also comes in AF versions.
The 18F is 44mm long! - with an internal diameter of 39mm although with a
couple of masking projections. Big enough to put a tripod mount on it -
same one that fits the 300/5.6 and some long zooms.
AndrewF
>Oops, you're right. Must have dropped a couple of marbles. I can say it
>works very well with the #01F 2X (at least that's the number on both of
>mine). I don't have an 18F extension tube. I did send a partial answer
>on the vignetting question to Dean Hansen, but guess it went directly to
>him, rather than the list:
>
>First, there are two versions of this lens. There are 3 listing for it
>on eBay at the moment. The first 2 are for the one I have, model 52B,
>The third is different and pretty beat up looking. I assume mine is the
>newer version, but am not sure.
>
>I had not tried mine with extension tubes. I put on an Oly manual 25mm
>and a Vivitar 36mm auto tube. I couldn't see any vignetting in the
>viewfinder on either one. I did notice a big difference in the clear
>opening. The 25mm Oly manual is just a huge, open tube, my 7mm Oly auto
>still has a large opening. The Vivitars all have a much smaller clear
>opening.
>
>andrew fildes wrote:
>
>>>Lovely lens, I've done both copy work and pics of insects, flowers, etc.
>>>This lens and the Tamron dedicated (it connects to the lens where the
>>>adaptall would go and the adaptall goes on the back of it.) SP 2x
>>>telexetender are designed to work together to take it down to 1:1.
>>>
>>>Moose
>>>
>>
>>No - the 1:1 extension tube is not the same as the 2X teleconvertor,
>>although both work with the lens.
>>Extention tube = #18F
>>Teleconverter = #10F
>>
>>AndrewF
>>
>
>
>
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