Customer Rating: 
Summary: Excellent product!
Comment: It was exactly what I hoped it would be. You are able to pick up so much detail, it's really amazing.
Customer Rating:
Summary: Very efficient for my purpose
Comment: I bought the Opteka 10x as an achromat for a DIY 35mm adapter for a camcorder. It serves that purpose wonderfully, making zooming in and focusing on the GG a doddle.
Customer Rating:
Summary: Extremely Happy with the product
Comment: Got it yesterday. I tried it as soon as i got the shipment. It's a great one. I had never taken such close shots with my SLR. Works out really good with my 18-35 mm Canon lens.It's a bit heavy, but it's kind of okay. I can use it when i need. Otherwise i will just put it in my camera bag. I would recomend this to my Friends. Also uploaded one picture taken with this.
Customer Rating:
Summary: Great Tool
Comment: I just bought it a couple of days ago and it resulted to be a very useful tool. it is better if it is used with a 18-55mm lens. It does not focus with a 300mm lens. This is the perfect tool for someone that want to experience macro photography. Once you have the hang of macro, you would be better of buying a macro lens.
Customer Rating:
Summary: very good
Comment: I use this for my 35 mm film camera. I was actually quite surprised at the quality of some of the macro photos i've been able to take with this thing. I would recommend a monopod or minitripod for the full 10x shots because holding the camera steady at focus range can be difficult.
The only gripe I could possibly have is that at minimal focal lengths there is some vigenetting, but on most of my photos it ended up making the shot look pretty cool anyways.
I think this lense is proof that you dont necessarily have to spend the big $$$ to get good photos.
Summary: Excellent product!
Comment: It was exactly what I hoped it would be. You are able to pick up so much detail, it's really amazing.
Customer Rating:
Summary: Very efficient for my purpose
Comment: I bought the Opteka 10x as an achromat for a DIY 35mm adapter for a camcorder. It serves that purpose wonderfully, making zooming in and focusing on the GG a doddle.
Customer Rating:
Summary: Extremely Happy with the product
Comment: Got it yesterday. I tried it as soon as i got the shipment. It's a great one. I had never taken such close shots with my SLR. Works out really good with my 18-35 mm Canon lens.It's a bit heavy, but it's kind of okay. I can use it when i need. Otherwise i will just put it in my camera bag. I would recomend this to my Friends. Also uploaded one picture taken with this.
Customer Rating:
Summary: Great Tool
Comment: I just bought it a couple of days ago and it resulted to be a very useful tool. it is better if it is used with a 18-55mm lens. It does not focus with a 300mm lens. This is the perfect tool for someone that want to experience macro photography. Once you have the hang of macro, you would be better of buying a macro lens.
Customer Rating:
Summary: very good
Comment: I use this for my 35 mm film camera. I was actually quite surprised at the quality of some of the macro photos i've been able to take with this thing. I would recommend a monopod or minitripod for the full 10x shots because holding the camera steady at focus range can be difficult.
The only gripe I could possibly have is that at minimal focal lengths there is some vigenetting, but on most of my photos it ended up making the shot look pretty cool anyways.
I think this lense is proof that you dont necessarily have to spend the big $$$ to get good photos.