I have an Olympus focus ring PPRZ-EP07 for the 30mm macro that I was hoping to use in my new AOI UH-OM1-II housing. It seems just a bit too big in some dimension (I can't really tell once the housing is closed). I'm sure AOI will tell me to order their version, but I just wanted to check in case I was missing something obvious. The focus ring does fit the gearing, and turns if there is no camera/lens in the housing.
PPRZ-EP07 in AOI housings
- Thread starter d^2b
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Brant Emery
Contributor
I find that the placement of the gear is critical. To close to the camera body and it will not operate at depth.
OP
I played with it a bit more and I think I can see what is happening. I can get it to move smoothly without a port in the housing, but if I insert a port I can see the zoom knob turn as I rotate the port into place. I think there is just not enough room between the port and the (bump saying Olympus on) the body for the deeper gear on the Olympus focus ring. I don't know how much one can see from the attached bad cell phone picture, but the top of the gear seams level with the tab in the port connection. If I can't source an AOI gear before my next trip I may consider some dental surgery on the Olympus gear.
bvanant
Contributor
You might try the 3d printer boys, maybe someone has the file.
Bill
Bill
OP
I have procrastinated long enough I don't have time to get the the AOI ring before my next trip, so I have dremeled down the base (i.e. the part with teeth) of the Olympus gear to be about 3.5mm thick and it seems to work OK-ish on land. It is definitely fussy about placement, so we'll see if works at depth. In the worst case I can just use autofocus, which I mainly did anyway on my old E-M5-II, which had noticably worse autofocus than the new OM-1. I did notice that the outer diameter of the gear on the Olympus part is a bit actually larger, which was a surprise.
It's not completely rational to worry about the price (given the cost of the system), but the sticker shock for the focus rings (USD 65 for a piece of plastic that looks 3D printed) is even worse when you convert to Canadian dollars. I guess Olympus accessories are similarly "luxury priced", but the finishing seems a bit more convincing.
It's not completely rational to worry about the price (given the cost of the system), but the sticker shock for the focus rings (USD 65 for a piece of plastic that looks 3D printed) is even worse when you convert to Canadian dollars. I guess Olympus accessories are similarly "luxury priced", but the finishing seems a bit more convincing.
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