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[OM] Re: WTB: good quality 1.4 or 1.5 TC

Subject: [OM] Re: WTB: good quality 1.4 or 1.5 TC
From: Jim Couch <jamesbcouch@xxxxxxxxxxxxx>
Date: Fri, 21 Jan 2005 10:45:26 -0800
I will be trying the Kiron out this weekend. I no longer have a long 
(300+) lens to try it with. I will be playing with it on the 75-150, the 
135 f2.8, and a Tokina ATX 80-200. I will try to report back next week 
with results.

Jim Couch



Moose wrote:

>Bernard Frangoulis wrote:
>
>  
>
>>The problem with the Zuiko 1.4x, besides the rather high price, is that it 
>>does not fit all lenses. 
>>
>>    
>>
>That's sort of a good news - bad news "problem"  Third party makers have 
>to make their converters compatibile with a wide range of lenses. Oly 
>took the course of designing the 1.4x just for their longer lenses. The 
>result was a design optimized for certain optical criteria. Part of that 
>was putting the front elements of the converter as close to the rear 
>elements of the prime lens.
>
>The good news is that the Zuiko 1.4x is apparently superior to all 
>others. Walt reports it is better than the Tamron SP 1.4x, which had the 
>same advantage of being designed only to fit their own adaptall lenses, 
>but fits most of them.
>
>The bad news is that it doesn't fit all the lenses we might like it to fit.
>
>The news is similar for the Zuiko 2x. It won't fit some lenses I might 
>wish it would fit. For example, the Tamron adaptall 2x SP converter 
>makes their 90/2.5 lens into an excellent 180/5 macro with focusing from 
>infinity to 1:1. I have the Zuiko 90/2 and the 2xA and was frustrated 
>that a boss on the back of the 90/2 prevents it from fitting on the 2xA. 
>However, Gary tested this combo with a 90/2 physically modified to fit 
>the 2xA. The results were terrible. Again, Oly has created a lens 
>optimized for limited uses.
>
>  
>
>>For instance I could not use it with my 135/2.8, making a very compact 200/4
>>
>>    
>>
>Maybe now you know why.
>
>  
>
>>for my "light travel" Domke bag. That's why I was 
>>wondering if other 1.5x converters were any 
>>better: Kenko, Kiron, Soligor... - anybody has 
>>tested them?
>>
>>    
>>
>The Kiron 1.5x vignettes on the 300/4.5. Ok for many shots which may be 
>cropped, but not a general purpose solution. I haven't tried it on 
>shorter lenses.
>
>Moose
>
>
>
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>  
>


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