topic Re: 77D: ISO doubles in EOS DSLR & Mirrorless Cameras

77D: ISO doubles

rosycreates — Sun, 13 Oct 2024 07:48:33 GMT

Why does my ISO double? Is it just the lower end models that do this? I dont think my previous 70D did that....this is a problem!!

Re: 77D: ISO doubles

Tronhard — Sun, 13 Oct 2024 08:26:48 GMT

Hi Rosy and welcome to the forum:

I am at a loss to understand your issues: the ISO rating improves with the higher number - i.e. it indicates what ISO the camera is capable of achieving, which is considered an asset.
See: Side by Side Comparison: Canon EOS 77D vs. Canon EOS 70D: Digital Photography Review (dpreview.com)

Specifically the 77D (released 2017) was a higher-end unit that doubled both the potential normal ISO range compared with the 70D (released 2013) - from 12,800 to 25,600 or, with ISO boost, (which is a digital manipulation) from 25,600 to 51,200. Compare those values to the fabulous R6 MkII (released 2023) with a maximum native ISO of 102,400 (expands to 204,800).

However, those maxima are somewhat theoretical values as noise increases with ISO value, and I would not personally have ventured bast 3,200 or 6,400 myself for either of the models you mention.

If you have an issue, can you please expand upon that with a bit more detail?

Re: 77D: ISO doubles

rosycreates — Sun, 13 Oct 2024 18:39:25 GMT

The ISO on my 77D is 100-200-400-800-1600-3200, etc. It was not like that on my previous 70D. Can I change it so I 1/3 stops on the 77D?

Re: 77D: ISO doubles

Tronhard — Sun, 13 Oct 2024 19:01:29 GMT

Yes. It is in your manual or you can browse the Red section in the menu

Re: 77D: ISO doubles

rosycreates — Sun, 13 Oct 2024 19:06:40 GMT

I've looked, and its not there. It's just exp comp that can be changed to 1/3 stops, not ISO.

Re: 77D: ISO doubles

shadowsports — Sun, 13 Oct 2024 19:41:06 GMT

Greetings,

Looking at this now. I think you are correct.

70D

77D

I'm not seeing a way to adjust ISO increments in the C.Fn menus. Only EV as noted.

Manuals:

eos70d-im-en.pdf (c-wss.com)

eos-77d-im-en.pdf (c-wss.com)

Re: 77D: ISO doubles

rosycreates — Sun, 13 Oct 2024 21:23:21 GMT

Thank you for your extensive research! I do appreciate it!

I was considering selling the 77d for a 80d or a 70d. However, price gouging seems to be in full effect this month. I bought my 77d with the kit lens & 3 batteries (on ebay) for $300 just a few weeks ago. Now, prices are EXTRAORDINARILY high every where!

Re: 77D: ISO doubles

shadowsports — Sun, 13 Oct 2024 22:13:39 GMT

Greetings,

Buying from eBay can be extremely risky. For your own piece of mind, consider Canon Refurbished, KEH or the used Depts of B&H or Adorama. You want to buy gear from an authorized Canon Dealer, or at the very least KEH who is qualified to inspect and certify gear, plus offer a warranty and right of return for a purchase.

eBay is full of scammers and people peddling junk. You might get lucky, but if you don't there is no recourse, leaving you with nothing but a headache or disappointed. Photography is not an inexpensive hobby and you typically get what you pay for.