Ray UK

Dust on the sensor will show more with a smaller aperture, you are probably using smaller apertures for your macro shots which is why they aren't so obvious on normal pics. Absolutely nothing to ...

It would appear that you have bought SD cards when you need a CF card.

APT (astro photography tool) will show your shutter count, it does far more than you will need but as it is free to download and free to use at its basic level then you have nothing to lose. It is ...

Shooting locos at 60-70mph will be a bit tricky for most people, it may be easier if they are coming towards you as opposed to across the field of view. I think you should certainly try a faster ...

That statement is totally incorrect !

I wasn't implying that there was anything wrong with 90D, I was quoting the appropriate diffraction limiting aperture for the 90D as shown in the table of this review: https://www.the-digital-pictu ...

As has already been said I think the biggest problem is mis-focusing and too small an aperture, with the 90D sharpness can begin to diminish with apertures smaller than f5.6, although this ...

The easiest way to get over your problem is to set the exposure compensation on zero (midlle of scale) then just ignore it and use the exposure meter only. If you keep messing about with ...

The exposure compensation indicator is just an indicator it is not a meter so it cannot be balanced, what you are thinking of as balanced is just zero compensation.

Which version are you talking about, the first one had a standard focus motor, the second one was USM and the third is an L with IS.

A transformer converts mains AC to a different (normally lower) voltage AC and is not suitable as a camera power supply. What you need is a regulated DC power supply, this maintains a constant ...

I got the measurement of approx 24 inches using a 35mm lens on my 7D2 which is a 1.6 crop camera the same as a 90D. The 60mm lens  may be a bit long for your needs, in fact a standard 18-55 zoom ...

A copy stand would be far better because you don't have to mess about getting the camera parallel to the document you are copying, just fix the camera on, adjust the height, focus and shoot. For a ...

The camera can adjust exposure for backfill depending on the mode switch setting. There is no way that any flash can recharge fast enough to get repeated exposures at   10  fps. I answered this in ...

The meter is not on the bottom, that is exposure compensation. Earlier Canon models changed the exposure compensation scale to the exposure meter on the bottom when switched to manual mode but ...

My PC was upgraded from win 7pro to W10 and the webcam software works with my 7D2. I could only get it working with the Zoom test site though, numerous other webcam test programs wouldn't work.

It doesn't use the internal mic, see information here: https://community.usa.canon.com/t5/Software/EOS-Webcam-Utility-Beta-Software-Share-Your-Feedback/td-p/304026/page/2

Looks like a simple case of over exposure, how do you determine the exposure settings you are using in manual.

Most extension tubes are designed around the length of extension you would need for a 50mm lens, if used with wide angle lenses they can show unpredictable effects sometimes putting the point of ...

That does not restore everything to factory default settings, the OP has tried this as stated in the first post of this thread.