Very cool lens. It is exactly as described on Revain so please be sure to check out the product specs and read more detailed reviews. I'll just do a quick test of the lens. This is a very large, heavy lens. You need a very strong tripod. It comes with a carrying case, lens cap and T-mount adapter. The lens itself, when extended, is marked with F-stops for the distance you want to shoot. You should be able to shoot in manual mode with this lens. Against this backdrop, it takes amazing shots of the moon and great distant shots. I am very happy with the lens, I use it quite often. Speaking of which, I would read the manual that comes with the lens, there are specific cleaning instructions. If you plan on using it a lot, like I did, make sure you get what you need to clean your lens, as they're dealing with very large lint and dust that sticks fairly easily.
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