Diopter dial lock

I am getting a bit fed up with the diopter dial on my 70D. It keeps moving around and never seem to be in the right place when I pick up the camera. I don't recall it being a big deal on my old 40D.

Any ideas on how to "lock" it in place?

/K

keheha wrote in post #17704925
I am getting a bit fed up with the diopter dial on my 70D. It keeps moving around and never seem to be in the right place when I pick up the camera. I don't recall it being a big deal on my old 40D.

Any ideas on how to "lock" it in place?

/K

From what I can tell, all cameras will be different, but I looked at your 70D online and it appears that it is more like my 5D mkII than my 7D mkII or my 1D mkIV. My 5D mkII is like yours, but, I don't have that problem, and as far as I know, I have not knocked it out of whack. I can see that it's not the best design, especially if someone (like you) has a problem with moving the wheel. I have not heard of anyone else that does this, and, I just did a quick search, and I didn't find anyone that had a remedy, because they don't do it, I guess. I now have a battery grtp on it and I can see that with MY hands, it is harder to reach that wheel with my fingers.
The reason I say all of this is, you either need to consciously change you ways of doing things, or, if you don't have a battery grip, that 'should' help you out, making it harder for you to 'reach' that wheel since your hand will be farther away from it, distancing it about right. If that makes sense.

Another way would be to use a string that you jam into the "diopter adjustment control" and that might make it harder to turn, after you already have adjusted it, of course. I know, not very scientific, but a thick string might actually work, maybe even a small piece of thin cardboard, not too thick or you 'could' damage something.
Another way would be to just put some tape over it after you set it, black would be best, that ought to help you out there.

Sorry I don't have a real remedy, or a cheaper one.

Randy

Superglue FTW!

Seriously though, maybe some clear nail polish could do the trick...I'd do a bit of research first to make sure it wouldn't do any permanent damage to the plastic.

Another option is to replace the eye up with something larger that blocks access to the diopter dial a bit...I'm assuming this is happening when the camera is carried by the neck strap (and rubbing against your body).

I've got one of these types of eye cups on my 7D and it seems like it would block your diopter adjustment fairly well.

http://www.amazon.com …al-10D-60D/dp/B003Y06336/

I am contemplating hot glue. Shoul come off again with isopropyl alcohol.

/K

How about some scotch tape over?

I thought of using tape too. Best place for the tape to grip would be the flat surface behind the eye cup. The tape would have to be thin as it's a snug fit.

I'm trying the hot glue for now. I'll update the thread with how it pans out.

Edit: Note that hot glue is a potentially messy affair and has a tendency to pull strings, so it would suggest covering up stuff where you do not want glue.

/K

Set diopter adjustment - then take the knob off! sorted....

joeseph wrote in post #17709581
Set diopter adjustment - then take the knob off! sorted....

This is actually a good idea.

I can't imagine it moving on it's own. The one on my 6D is damn hard to move when you want to let alone it moving by itself.

I notice on page 44 of the manual that it is stated that if the dial is hard to turn to remove the rubber eyepiece. I also notice from one of your attached photos the eyepiece isn't mounted. Perhaps you should give it (the eyepiece) a try.

I would not remove the knob, I can almost guaranty you will lose it. It could be important if you ever sell your camera or your eyesight changes.

Buy a small tub of Black RTV Silicone at the hardware store. Easily removed, and no harm to the plastic. Blends in well too!

Although too large for this, I use a Silicone type 832 (?) from DOW in a standard caulk gun tube, it is a pure black color rubber like might be used for windshields or automotive trim. It was perfect for the plastic inserts on a trucks side steps. Dries well, clean, strong.