DPReview.com is closing April 10th - Find out more

ISO setting on canon 800d

Started Aug 25, 2018 | Questions
EialBond New Member • Posts: 3
ISO setting on canon 800d
  • I recently upgraded from canon 650D (t4i rebel) to the canon 800D (t7i rebel).
  • while playing with it indoors I noticed in Av mode it always selects the highest ISO I allowed in that mode with aperture 5.6 or higher. Even when internal flash was activated and also when external flash was activated.
  • I compared with the 650D (t4i) and it selected 400 ISO consistently while flash was selected and active with same lens and aperture.
  • Note: when I stepped down to 3.5 or really slowed down the shutter speed, it finally selected a smaller ISO but still higher than the 650D.
  • can anyone give a reasonable explanation to this?
ANSWER:
This question has not been answered yet.
Canon EOS Rebel T4i (EOS 650D / EOS Kiss X6i) Canon EOS Rebel T7i / EOS 800D / Kiss X9i
If you believe there are incorrect tags, please send us this post using our feedback form.
seri_art
seri_art Veteran Member • Posts: 3,063
Re: ISO setting on canon 800d

My T7i does not do that. I just now tested it, and In Av mode at f/5.6 I got a full range of ISO depending on where I pointed the camera (dim light or bright light), just as I would expect. Of course ISO is set to Auto.

 seri_art's gear list:seri_art's gear list
Sony RX100 III Canon EOS Rebel T7i Canon EF 40mm f/2.8 STM Canon EF-S 18-55mm f/3.5-5.6 IS STM Canon EF-S 55-250mm f/4-5.6 IS STM +3 more
cdmazoff
cdmazoff Senior Member • Posts: 2,826
Re: ISO setting on canon 800d

EialBond wrote:

  • I recently upgraded from canon 650D (t4i rebel) to the canon 800D (t7i rebel).
  • while playing with it indoors I noticed in Av mode it always selects the highest ISO I allowed in that mode with aperture 5.6 or higher. Even when internal flash was activated and also when external flash was activated.
  • I compared with the 650D (t4i) and it selected 400 ISO consistently while flash was selected and active with same lens and aperture.
  • Note: when I stepped down to 3.5 or really slowed down the shutter speed, it finally selected a smaller ISO but still higher than the 650D.
  • can anyone give a reasonable explanation to this?

Are you set to Auto ISO as well?  See pages 152 - 153 of the pdf manual

-- hide signature --

https://www.flickr.com/photos/37432113@N08/
When I'm not playing birds, I'm shooting my accordion....or is it the other way around?

 cdmazoff's gear list:cdmazoff's gear list
Canon EOS 90D Canon Extender EF 1.4x III Canon EF 100-400mm F4.5-5.6L IS II
Keyboard shortcuts:
FForum MMy threads