EOS Rebel T100: Can't see through viewfinder

[XBXBlaZe]

I have a eos rebel t100 and cant see through the viewfinder but I can when my Camera is in active shutter

[Tronhard]

Hi Blaze and welcome to the forum:
Just to be absolutely sure we are talking of the same thing.  Are you talking about the optical viewfinder at the top of the camera or the LCD screen on the back?  What precisely do you mean by 'Active shutter' mode?

[XBXBlaZe]

The little square above the lcd screen, and what I mean by active shutter is when I took a picture and it's continuing taking the pics

[Tronhard]

Thank you for your prompt response!
When you are focusing the camera in preparation to take a photos, does the LCD at the back display an image?

Thanks!

[XBXBlaZe]

When I am about to take a shot I can see the image on the big lcd screen but I can't on the viewfinder when I put my rye up on it

[Tronhard]

OK that makes sense.  You have the Live View feature turned on, which causes the camera to raise the mirror up and block the viewfinder.  You need to turn off Live View and then the mirror will flip down.

See the User Manual: eos-rebelt100-3000d-im1-en.pdf (c-wss.com)
The button that controls this is shown on P27.