Vivitar wide-angle/macro attachment for Canon 75-300 lens won't fit

[acr2024]

Hello, all. My son-in-law has a Canon EOS Rebel T100 camera.  I bought him a Vivitr for Canon wide angle + macro lens for Canon EF 75-300 f/4-5.6 III lens.  I have no photography experience, but based on the research I did, I thought this would fit his camera.  We can't get it to attach so I was wondering if there was some kind of adapter I could buy for him?  Any help would be appreciated.

[jrhoffman75]

Hello. Welcome to the forum.

I don't want to make you feel bad, and I am sure your son-in-law appreciates the thought, but in reality those adapters are of low image quality and often don't even give a full size image; you get a circular image. Adding the adapters to that lens will not result in a happy experience.

Hopefully you can return the adapters and get your money back. 

[acr2024]

Thank you so much for taking the time to help and preventing me from making another mistake!  I will see if I can return the lens.

[ebiggs1]

Absolutely return it. Not only horrible IQ they can damage your Canon lens if used improperly.