Cokin R730 - Lente de Conversão Grande Angular 0.5x de 52mm

Comments about Cokin R730 52mm 0.5x Wide-Angle Converter Lens:

I wanted to use this with my Nikon D90 and the 50mm 1.8D lens I've been using for a few years so I could have a 25mm without spending a boat load of money and also bring one less lens (since this Cokin is quite compact).

I used it for the first time at a friend's wedding and just about all the pictures were never really focused/sharp and the edges were consistently blurry.

I guess thats what you get for trying to cut corners

Comments about Cokin R730 52mm 0.5x Wide-Angle Converter Lens:

This lens definitely has fisheye distortion and barrel distortion at the wider end. The images are pretty sharp. When fixed with a 18-55mm Nikon lens, there is heavy vignette at 18mm. But there is no vignette at 20mm and above. Regarding the fisheye distortion and barrel distortion, they can be easily corrected using Photoshop or PTLens. I had a Tokina 12-24mm which was 500$, compared to [$] I paid for this. I was willing to do post processing using Photoshop, but if you dont need any distortion, maybe spending the extra bucks is the right thing for you