Good copy Vs Bad copy

Started 9 months ago | Discussions thread
Flat view
BillyBob1 Regular Member • Posts: 401
Good copy Vs Bad copy

This is more of a general discussion rather than specifics about a particular lens.

I often read about people having what they called a “good copy” or a “bad copy” of a lens.

How much of a real issue is this?  Is it really the case, that you could have 2 brand new identical lenses, and yet one is better than the other?

What is it that makes one a better copy than another?  Was it the person assembling that lens having a bad day?  Was it the work experience kid assembling the lens?

These days with in camera AF tune - is it still a big issue?

Im getting ready to buy a D850 with probably the 24-70 2.8.  What concerns me the most, is  spending over $3000 AUD on the lens, and getting a “bad” copy.  Stores here don’t really let you try and keep swapping them over until you get one your happy with!

Do bodies come in “good” and “bad” copies also?  Or is it mostly the lenses?


 BillyBob1's gear list:BillyBob1's gear list
Nikon D5300 Nikon D850 Nikon AF-S DX Nikkor 35mm F1.8G Nikon AF-S Nikkor 50mm f/1.8G Nikon AF-S DX Nikkor 18-140mm F3.5-5.6G ED VR +3 more
Nikon D850
If you believe there are incorrect tags, please send us this post using our feedback form.
Flat view
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow