Here are a few links to Photography Equipment reviews; every thing from lenses to camera bags.

Two great sites for reviews on literally everything:

DP Review

What Digital Camera

Other sites to check out:

Snapsort - This is a good site which can help you buy a camera.

Lense sample archive - Forum with sample images from various lenses.

LensHero - A great website for figuring out what lens is right for you.

MfLenses - A large list of manual lenses with a gallery showing what the lenses look like and how they perform. Has a forum to get help and advice from other manual lens users around the world.

If you have any other sources you would like to add to this which other members may find helpful, comment below and they will be added!

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