Will a mercury optic .45x 58 mm wide angle lens fit on a canon camera?

If you can fit a filter to the front of your lens, you could buy a wide angle adapter like a 0.5, with the screw size that fits your filter screw.
But the wide angle front lenses, were designed for compact camera's and video camera's And although the 18 mm could become like 12 mm, but you will introduce colour fringing, distortion and more , that can't be corrected in normal programs like Lightroom.
I used a wide angle 0,5x (52mm) Hama and a tele 1,5x from cannon, on my video and later on my canon powershot G9, to find I was looking for a DSLR. I never was quiet pleased with the results.

And yes, sometimes you can't go farther back, but then I shoot 2 or 3 pictures.
Now I use a 12 - 24 on my Nikon DSLR. Now I get the pictures I want in a quality that fits.
My 0,5 and 1,5 are somewhere in a box. I payed the same (new) for both as for my Sigma 12-24. With the sigma I do have fun.

Success

There doesn't seem to be one.
You just screw the adapter onto the front of any lens with a 67mm filter thread and it will expand the field of view.

You don't "set wide angle." Wide angle is not a function of your camera, it is dependent on the lens you use on your camera. You need a lens with a low focal length such as 24 mm.

Canon FD lenses date back to before the mid 1980's. They use a totally different mounting system to the later EOS mount which was a redesign to suit the needs of auto-focussing.

Unfortunately they are chalk and cheese: you cannot realistically fit an FD lens to an EOS camera.

Your fix is to sell the lens and to buy one with an EOS mount.

No. It's an optical fault and is either a manufacturing defect or a design flaw.

Such problems are VERY common with ALL no-name brand supplementary screw-on lenses and not entirely uncommon even on branded similar models costing vastly more and intended for a specific make and model of camera.

Supplementary lenses are simply a get-you-by compromise, they will never be anywhere near as good in terms of image quality as a lens designed to be a wide angler or telephoto from the outset but will allow you to capture image which may otherwise be unattainable without a lot of additional expense and equipment.

If you have the N55 body, then all you need are at least one lens (almost any lens with a Nikon mount built in the last half-century will fit on it, except for the newer DX lenses which will cause vignetting), film (35mm), and batteries (two type CR2 lithium cells).

Optional accessories include (but are not limited to) a neckstrap, camera bag, filters, and more lenses.

The digital .45x wide angle adapter will not do you any good with the N55.

Yes, you should be able to use them. Be aware, moving to digital there is a 1.6 crop factor. The means your 100 mm lens will have the field of view (FOV) of a 160 mm. No, it does not mean it is a 160 mm it is the fFOV is the same as a 160 mm. Also, at the other end is were you will most want to purchase a wide angle lens.
Example: your 28 mm film lens now has the FOV of 44.8, not wide angle. As you can see wide angle is where the move to digital crop sensor cameras lose out. To get back to wide angel you would need a 17 mm lens, that would give you 27.2 mm FOV.
To figure FOV take the lens multiply it by the crop factor. On a Canon it is 1.6, on a Nikon it is 1.5, the 4/3 sensor is 2.0.

Buy a 58mm to 52mm step down ring. They're readily available on eBay.

This lens was manufactured by Kino (aka Kiron) made in 2001. I will try to find out it's compatibility list and post it here when I have it.

Hi, the adoptor tube are not compatible to the camera try to consult nearest lense seller they can recommend the exact adoptor lenses to your camera.