I'm a new user so I don't have a lot of technical knowledge yet, would appreciate some help on this. I'm seeing these splotches and spots on the photos in my DSLR camera.

I'm stumped on the source of the big ugly splotch in the centre and its 2 siblings to the left. I've cleaned both ends of the lens; unfortunately, I only have the one lens so I can't swap it out to see if the splotches remain. Position of splotches is constant in all photos.

Thanks in advance for the assist! Camera is the Nikon D7200, lens is 18-105mm.

I'm a new user so I don't have a lot of technical knowledge yet, would appreciate some help on this. I'm seeing these splotches and spots on the photos in my DSLR camera.

I'm stumped on the source of the big ugly splotch in the centre and its 2 siblings to the left. I've cleaned both ends of the lens; unfortunately, I only have the one lens so I can't swap it out to see if the splotches remain. Position of splotches is constant in all photos.

Thanks in advance for the assist! Camera is the Nikon D7200, lens is 18-105mm.

EDITED TO ADD: A couple of close-ups of the splotch. These are both of the central splotch from a couple of different photographs.

I'm a new user so I don't have a lot of technical knowledge yet, would appreciate some help on this. I'm seeing these splotches and spots on the photos in my DSLR camera.

There are 2 separate types of marks that I'm seeing consistently - the small blackish spots inside the grey circle seem to me to be sensor dust? However, I'm stumped on the source of the big ugly splotch in the centre and its 2 siblings to the left. I've cleaned both ends of the lens; unfortunately, I only have the one lens so I can't swap it out to see if the splotches remain. Position of splotches is constant in all photos.

Thanks in advance for the assist! Camera is the Nikon D7200, lens is 18-105mm.

I'm a new user so I don't have a lot of technical knowledge yet, would appreciate some help on this. I'm seeing these splotches and spots on the photos in my DSLR camera.

I'm stumped on the source of the big ugly splotch in the centre and its 2 siblings to the left. I've cleaned both ends of the lens; unfortunately, I only have the one lens so I can't swap it out to see if the splotches remain. Position of splotches is constant in all photos.

Thanks in advance for the assist! Camera is the Nikon D7200, lens is 18-105mm.