Sentinel4 wrote:
I am interested in buying a lens cap modified for pinhole use for my Fuji XT3 or 2. The Thingify reviews are not that impressive. Has anyone had a lens cap drilled or perhaps had someone use a 3D printer to make one?
Thanks for any info.
Sentinel4
The last place where I would expect to here a question like why do you want to do this is here, on a photography site.
Oh well ( great song, by the way).
I am suggesting an easily obtained book. Find it on Ebay, $5 or so.
Pinhole Photography, by Eric Renner. A must read for an artist and/or photographer.
All the info you need.
Use brass shim stock. Ask at an auto repair shop. Various thicknesses are available.
Punch out a few pieces with a paper punch.
Tap them flat with a hammer on a flat piece of metal.
Using a sewing needle with a roll of tape around the eye to spin the needle you will make a 'pinhole'.
Put a punchout on a piece of smooth wood, center the needle by eye and drill a hole. Practice makes perfect. The eye can "autocenter", the smaller the better. One of the reasons for a small punchout.
Clean and smooth both surfaces with FINE wet or dry paper. Blacken both sides with a magic marker. Set aside.
Get a tight fitting proper body cap for your camera.
With a drill press, using a .25 inch SPUR POINT BIT drill a centered hole from the back TILL THE SPUR BARELY PROTRUDES. Too deep you ruin the cap. I drill on a piece of metal. Positive stop.
Drill the tiny hole to 1/16th and beburr.
Glue the set aside pinhole into the .25 inch hole. I sparingly use super glue. A total seal is wanted.
I produced a half dozen this way.
Figured a way (with a Dremmel collet to hold the needle) to effectively reproduce these quickly and accurately.
A commercial made one has a clear glass protective cover, seals camera from dust. It is also LASER drilled.
Sold mine to patrons (I buy and sell cameras and gear) for $5, face to face.
Get the book, you will be rewarded many times over.
Bill