Bower 3.5x telephoto problem...

[franky]

Hi,
I would like to submit you all a problem... I just bought a Bower 3.5X 58mm Telephoto Lens.To be exact, the Bower digital lens dHD super telephoto, just like this one:

I have a Nikon D80 and I put it on my Sigma 70-300mm DG

Here an exemple of a photo without the bower lens


And here an exemple of a photo WITH the bower lens...


You can see like me that this is a DISASTER

I used my tripod, I even withdraw my lens filter in case it add distance between the bower lens and the sigma lens...

I tried with direct sun, indirect sun, big aperture, small aperture, with the filter, without the filter between the two lenses. I don't know what to do

The more I zoom, the more the white effect appear. For the two photos example, I was at 300mm.

Is this a bad choice of lens or is it the photographer the problem!?!?

If you need other info, feel free to ask....

Thanks for your help!

[sk66]

Sorry, it looks like junk to me.

[zona5101]

if you were my brother i would say "what are ya, new?"
But since you're not, I will just say an inexpensive screw on lens isn't the most optically sound choice.

[OsmosisStudios]

Those screw-on things are crap. Total and complete crap.

[franky]

First of all, thank you all for your answers... It's rough but it's true!! I shouldn't take my money to buy that kind of lens. I will ask for a full refund and forget this adventure as soon as possible.
Thanks for your help and I wish you all a nice day!
Franky