What is meant by a "bad example" of a new lens? How do you check?

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river251
river251 Regular Member • Posts: 464
What is meant by a "bad example" of a new lens? How do you check?

Is this about a lens not focusing correctly? Is it just a matter of taking shots and observing how well it focuses? How do you know what to expect with a new lens?

Thanks,

Jim

kociasek Regular Member • Posts: 185
Re: What is meant by a "bad example" of a new lens? How do you check?

You may find some answers to your questions in this article: https://photographylife.com/good-bad-copy-of-lens

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Leonard Shepherd
Leonard Shepherd Forum Pro • Posts: 22,705
Re: What is meant by a "bad example" of a new lens? How do you check?
1

Specifically Nikon - a lens that does not perform when received by the customer as well as when it came off the assembly line. Nikon in their lens brochures say they check all lens functions at this stage.

Nikon say they then check each lens again in detail just before shipping.

A challenge for relative novices is knowing how to test to a high standard.

If you have a Nikon lens and body you should know what you can get from it.

You can then compare the performance of new equipment with what you have - taking into account the price point of each item.

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Leonard Shepherd
In lots of ways good photography is much more about how equipment is used rather than anything else.

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Michael Benveniste
Michael Benveniste Veteran Member • Posts: 5,889
Re: What is meant by a "bad example" of a new lens? How do you check?
2

I suggest you take the time to read through these articles;

https://m.dpreview.com/opinion/6856813208/roger-cicala-the-difference-between-sample-variation-and-bad-copies-part-1

https://m.dpreview.com/opinion/9596141908/roger-cicala-the-difference-between-sample-variation-and-bad-copies-part-2

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river251
OP river251 Regular Member • Posts: 464
Re: What is meant by a "bad example" of a new lens? How do you check?

Leonard, you sure hit that nail on the head. That describes the dilemma I feel in now. Thanks for the articles guys, I will read them with my morning coffee.

Jim

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