topic Re: Shooting in vertical mode in EOS DSLR & Mirrorless Cameras

EOS 90D Vertical shots underexposed

Ramsden — Fri, 07 Nov 2025 20:40:44 GMT

Hi folks

I had a strange occurence yesterday afternoon, here in the North of England.

EOS90D with a new 100mm Macro attached. I was shooting trains crossing a viaduct that was built around 1850 - so quite atmospheric.

Camera set on AI servo, High Speed continuos, AF large zone and partial metering. White balance set to Shade (7000k). Tripod set up so I could pan the 200 meter track.

I appreciate that this wasnt the ideal lens for this composition. But, after getting a few shots of the viaduct to get line and focus set up; I had a reminder from a book I'd just read, to try and use vertical shots more often, and given the height of the viaduct this made sense. So 5 mins before the next train, switched camera to vertical, and took about 12 shots as the train crossed.

When I got home and downloaded the photos, all the vertical shots were black (under exposed?)

So what happened?

My only thought was that I didnt alter the 'tulip hood' for vertical and wondered if that would significantly alter the light?

Any explanations, advice, as always welcome.

Ramsden

Re: Shooting in vertical mode

jrhoffman75 — Fri, 07 Nov 2025 11:09:54 GMT

@Ramsden wrote:

Hi folks

I had a strange occurence yesterday afternoon, here in the North of England.

EOS90D with a new 100mm Macro attached. I was shooting trains crossing a viaduct that was built around 1850 - so quite atmospheric.

Camera set on AI servo, High Speed continuos, AF large zone and partial metering. White balance set to Shade (7000k). Tripod set up so I could pan the 200 meter track.

I appreciate that this wasnt the ideal lens for this composition. But, after getting a few shots of the viaduct to get line and focus set up; I had a reminder from a book I'd just read, to try and use vertical shots more often, and given the height of the viaduct this made sense. So 5 mins before the next train, switched camera to vertical, and took about 12 shots as the train crossed.

When I got home and downloaded the photos, all the vertical shots were black (under exposed?)

So what happened?

My only thought was that I didnt alter the 'tulip hood' for vertical and wondered if that would significantly alter the light?

Any explanations, advice, as always welcome.

Ramsden

If it is the correct lens hood is designed to not interfere with the rectangular format of the camera image. It doesn’t need to be changed no matter how you rotate the camera.

Did you perhaps inadvertently change exposure settings when changing camera position? What do the camera settings show when you view the images on LCD?

Re: Shooting in vertical mode

Ramsden — Fri, 07 Nov 2025 11:39:51 GMT

Hi John

Correct - I somehow changed the settings. Though, in my defense I was working in a woodland area with brambles and other things to distract me!

But, when I got this 100 mm Macro a couple of weeks ago, it didn't come with a hood. I had a tulip hood in my 'store' that fitted the lens. So where can I check that I have the correct hoods for this, and my other lenses?

Thanks

Ramsden

Re: Shooting in vertical mode

Anonymous — Fri, 07 Nov 2025 11:46:40 GMT

Partial metering uses about 6%(dependending on model) of the frame to measure from. Probably this area used for metering ended up on a different(much lighter) part of the frame when changing orientation.

Lenshood has indeed nothing to do with this, would only affect part of your shot if fitted wrong and equally for portrait and landscape.

Re: Shooting in vertical mode

p4pictures — Fri, 07 Nov 2025 11:47:06 GMT

The EF 100mm f/2.8L Macro IS USM lens comes with a lens hood, the Canon ET-73 Lens Hood is supplied. It's not a tulip design hood, but just like a tube.

If you have one of the other Canon EF 100mm macro lenses the hoods are...

Canon EF 100mm f/2.8 Macro USM - ET-67 lens hood
Canon EF 100mm f/2.8 Macro - ET-67 lens hood

Re: Shooting in vertical mode

jrhoffman75 — Fri, 07 Nov 2025 11:48:59 GMT

@Ramsden wrote:

Hi John

Correct - I somehow changed the settings. Though, in my defense I was working in a woodland area with brambles and other things to distract me!

But, when I got this 100 mm Macro a couple of weeks ago, it didn't come with a hood. I had a tulip hood in my 'store' that fitted the lens. So where can I check that I have the correct hoods for this, and my other lenses?

Thanks

Ramsden

The proper hood for that lens is ET-73.

You can find the proper hood for any lens by checking the instruction manual for the lens on the Canon support site or searching Amazon for "lens hood for XXX"

Does your 90D have a "Lock" position for the OFF-ON switch?

Re: Shooting in vertical mode

jrhoffman75 — Fri, 07 Nov 2025 11:52:46 GMT

I just checked - it does.

Re: Shooting in vertical mode

jrhoffman75 — Fri, 07 Nov 2025 11:55:41 GMT

I checked. It does have a lock position.

Re: Shooting in vertical mode

kvbarkley — Fri, 07 Nov 2025 12:00:16 GMT

If you are using a tripod, are you covering the viewfinder?

what does the exit say?

Re: Shooting in vertical mode

Ramsden — Fri, 07 Nov 2025 12:09:26 GMT

I have a lock switch, bottom right hand rear of the camera body, but its not by the 'on - off' switch.

Re: Shooting in vertical mode

Ramsden — Fri, 07 Nov 2025 12:57:04 GMT

I haven't covered the view finder, and wasn't aware of that procedure. Could you please explain?

In this particular situation, i was quite literally wading through an old overgrown woodland, so it was easier to use the screen.

Re: Shooting in vertical mode

jrhoffman75 — Fri, 07 Nov 2025 13:04:40 GMT

You can configure it to prevent having your settings changed by inadvertent dial movement.

Re: Shooting in vertical mode

normadel — Sat, 08 Nov 2025 00:26:44 GMT

The correct hood for the EF 100mm f/2.8 Macro USM, which I have, is a Canon ET-67, or a clone (I have a JJC version). It is not a tulip hood. It's a straight tube 3" long. There's also another Canon 100mm lens, the EF 100mm f/2.8L Macro USM, which uses an ET-73 hood.

The way to see what hood Canon designed for a lens is to look in the Canon lens manual, which you can download. I have the manuals for all of my lenses. They contain a lot of good info.

Re: Shooting in vertical mode

kvbarkley — Sat, 08 Nov 2025 12:58:59 GMT

When you are using a remote release on a tripod and your eye is away from the viewfinder, stray light can enter the camera and influence the exposure. Canon provides a cover attached to the strap that you can use to cover the eyepiece so no light gets in.
This is not an issue when using live view.

Re: Shooting in vertical mode

Ramsden — Sat, 08 Nov 2025 14:04:55 GMT

Hi John

Thanks for that link. I have now updated the features that are locked. Another step on my learning curve with the EOS90D.

I had mistakenly thought that when my external lock switch was on, I was relatively safe.

Regards

Ramsden