How to Evaluate a New Lens? (Sort of Disappointed with the 16-70)

Started 7 months ago | Discussions thread
tammons
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Re: How to Evaluate a New Lens? (Sort of Disappointed with the 16-70)
In reply to forpetessake, 7 months ago

I just do this to get a general idea of what a lens is doing rather than an absolute and why I said you have to use a lens in different conditions as a part of evaluation.

IE I had one sigma 18-125 lens that drove me nut until I tested it then I was able to use it effectively.

It was tack sharp at 18mm WO. From maybe 20mm up to 40mm it was very soft WO but at 50-80mm very sharp WO then got soft as normal for that type of lens. What threw me off was I would use it at 18mm and 50-80mm WO and get superb photos, but 24-40 were soggy. At any rate I figured it out.

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