Wide angle converter lens for Z1

[officer_nova]

I was thinking of buying this add-on from amazon, but then i noticed them on ebay for cheaper. On ebay they claim their lenses are 'x0.45-x0.5', however on amazon, the official product claims to have a wide angle converting figure of x0.75.
Which lens will give me a greater panoramic shot, are wide angle converter lenses similar to fisheye lenses in that they give a stretched image???

[foffodc]

Z1 has a 38-380 mm. objective.

38x.75 = 28 mm.
38x.5 = 19 mm.

[foffodc]

PS. A lower focalsize will give a "close" fish-eye result.

And higher barrel distorsion (pin-cushion)

[officer_nova]

do any of these convince you? I was thinking of changing my order from amazon because they keep putting the dispatch date back. Tell me what you think. thanks guys....
http://cgi.ebay.co.uk/ws/eBayISAPI.d...category=30070
http://cgi.ebay.co.uk/ws/eBayISAPI.d...category=15215

[foffodc]

Have You checked if You can connect them directly to the camera or if You must use ZCA-100?

[slipe]

I don’t think you are going to be thrilled with the quality of either. This is a thread about similar inexpensive adapters: http://www.photo.net/bboard/q-and-a-...?msg_id=005Pvp

[officer_nova]

Thanks, those cheap lenses from ebay get shocking reviews, im so glad i didn't fall for the trap, i will be patient and wait for the proper lens from amazon. Thanks for the help, H