I'm shopping around for some AUX lenses. I have an old 28mm Vivitar lens and I'd like to do a little more with it. However, on my k10D, the crop factor takes a bit of the fun out of it. I've seen these ~0.5x (specifically the brand Neewer's 0.45x). Obviously I'd prefer to buy a fisheye lens, but I can't really justify the expense for something to play around with. One of these AUX lenses would give me an effective focal length of 12.5mm.
I was wondering if anybody had any any experience with these AUX lenses and could give me any recommendations.
Also I'd prefer to get one where the edges of the filter aren't visible. I may be fine with getting one with a 52mm thread since the lens was designed for 35mm, but I don't have the ability to try it out.
Any suggestions of guidance? I'd really like to pick one up in time for the 4th of July.
Edit:
I'm really not expecting high quality here. These converters really don't have a very good reputation, however I thought it'd be fun to play with.
Last edited by jadedrakerider; 07-01-2015 at 01:53 PM.