On 14 Jan 98 at 18:31, Gary Schloss wrote:
> >> Re: macro photography using OM system. I've been thinking about getting
> >> the auto bellows and a 1 to 1 macro lens, or 65-116 auto tube, but now I
> >> am thinking maybe I should save for a T*mr*n SP 90MM F2.8 1:1 macro lens
> >> in adaptall mount. I'd like to get 1:1 magnification, any advice ?
>
> AFAIK, the above 90/f2.8 is an AF only model, hence it doesn't come in OM
> mount. The MF/Adaptall 2 model is the SP 90mm F2.5, and w/o liffe size
It may be hard to come by, but the MF 90/2.8 is around - I've seen one here.
It's also listed on their web page:
http://www.tamron.com/tamhome.html
Here's the text from the 90/2.8 MF page:
List Price: $707.00
The portraiture capabilities of the popular Tamron MF90mm F/2.5 (Model
52BB) are further enhanced in this 90mm model with its fast F2.8 aperture. For
handling ease, the lens weighs a mere 426g, making it ideal for taking
advantage of its maximum macro magnification ratio of 1:1. Its 2.8 aperture and
9-bladed diaphragm help in producing soft out-of-focus backgrounds, while the
optical design of the lens ensures sharp images from corner-to-corner.
Specifications
Model
72B
Lens Construction
(Groups/Elements)
9-10
Angle of View
27°
Type of Zooming
---
Diaphragm Blade Number
9
Minimum Aperture
F/32
Minimum Focus
11.4in.(0.29m)
Macro Mag. Ratio
1:1
Filter Diameter
Ø55
Weight
15oz. (426gm)
Diameter x Length
Ø2.7 x 4.0in. (Ø68.2 x 101.5mm)
Accessory
Lens hood, Case
Mount
Adaptall II Interchangeable mount system
========================
Shawn Wright
Computer Systems Manager
Shawnigan Lake School
250-743-6240
swright@xxxxxxxxx
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