The 90/2.5 is the original Vivitar Series 1. All metal, had separate 1:1
adapter with tripod collar on adapter. Adapter has optics in it. HEAVY
lens.
The 90/2.8 was Vivitar's economy version. Went to 1:1 without any adapter.
Complete extension without optics. More of a matte finish in body. Lighter
weight. Likely similar in optical quality to the 2.5 and certainly easier
to carry.
The other difference is that the 90/2.5 on Gary's list is MY lens! (:>) I
love it!
Brian P. Huber
> Just wondering what is the difference between the recently mentioned
> Vivitar 90mm/2.8 someone bought from eBay and the
> Vivitar 90mm/2.5 macro, series 1 in Gary's lens_test page ?
>
> more/less plastic, different filter size (what does the 2.5 has ?)
> is only the 2.5 a macro version, and what might a 2.5 be worth
> and is the something like a package 90/2.5 and some kind
> of a converter/tube/what-so-ever once sold from Vivitar ?
>
> Rudy
> Berlin/Germany
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