Canon Rebel T7 Not Focused Manual, No matter what lens and is a new problem

[bbrochu26]

My canon rebel T7 has been having issues with focus with both my 300mm and 50mm lenses. I have been taking photos for 5 years and know how to use manual focus, and suddenly none of my photos are as sharp and focused as they have been in the past. I have properly cleaned the lenses and sensor, and camera shop said there are no problems.

[deebatman316]

What are the FULL NAMES of the lenses in question saying 300mm or 50mm is NOT a complete model name. A complete model name would "Canon EF 50mm F/1.2L USM" or "Canon EF 300mm F/2.8L IS II USM" lens. I have pictures below to help identify your lens' full name. Now these are examples only not your actual lens.

Here is a picture of an example picture of a lens. This may NOT be your exact lens. So please provide the full name of yours.

[Waddizzle]

Do you have soft images when you use auto focus?  The T7 doesn’t have any manual focus aids, except for the Live View in a magnified mode. 

If you’re manually focusing, then you’re responsible for the focus accuracy. I will also add that the issue is not the camera. All the camera does is record the image presented to it from the lens. 

[bbrochu26]

Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens and Canon EF-S 18-55mm f/3.5-5.6 IS II lens. I have never had any problems, and since October have not been able to get any focused shots with either lens. I have tried all tricks I can think of. There is a 'foggy' like tint on most of my photos, even after properly cleaning. 

[deebatman316]

Have you tried these lenses on a different camera. I highly doubt that both of your lenses are broken at the same time.