[5D2] How far in mm (if known) is it from the metal ring for the lens mount to the top sensor layer?

Started 5 months ago | Questions
Darkmatterx76
Darkmatterx76 Junior Member • Posts: 31
[5D2] How far in mm (if known) is it from the metal ring for the lens mount to the top sensor layer?

Hi,

As to what I said in the title I am referring to the metal ring on the body of the 5D Mark ii. I was looking at various high magnification products with LED lighting that would let me see dust on the sensor but most have a very small max focus distance. Many of them basically need the device sitting right on the item it is looking at so I need to know the distance so I can ask retailers how far away an object can be from the base of the item and still be able to reach ideal focus.

There is 1 pen magnifier that would actually fit past the mount ring but I don't know what its max focus distance is either and while I could get it closer to the sensor it wouldn't be very stable to keep the sensor in focus and I would be at risk of actually touching the surface which would be very bad....

Thanks,

DM

ANSWER:
Canon EOS 5D Mark II
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Phil Shaw Regular Member • Posts: 242
Re: [5D2] How far in mm the lens mount to the top sensor layer?
1

The position of the focal plane is marked on the rhs of the prism housing.

Sittatunga Contributing Member • Posts: 924
Re: [5D2] How far in mm the lens mount to the top sensor layer?
1

Phil Shaw wrote:

The position of the focal plane is marked on the rhs of the prism housing.

It's 44mm from the front plane of the bayonet to the focal plane. For the M series cameras that dimension comes down to 18mm.

selected answer This post was selected as the answer by the original poster.
Darkmatterx76
OP Darkmatterx76 Junior Member • Posts: 31
Re: [5D2] How far in mm the lens mount to the top sensor layer?

Thanks to both of you for your responses. I wish I could pick 2 as the answer but since I can't I chose both I decided to go with Sittatunga's reply since it had the exact mm distance.

Still, both were very helpful.

Thanks!

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