Eyecups needed for 1.25" Ortho EPs?

[Vroobel]

Hi,

Recently I purchased Ortho EPs manufactured by Masuyama to use with my A80M and binoviewer. They have 33.95mm diameter. I think a winged eyecup designed by me will also match Fujiyama, Kasai, Antares and other Japanese Orthos. If not, you can adjust a Horizontal Expansion (which I set as -0.25) or simply stretch it in Cura or other slicer. A vertical stretch is also possible. All details are provided on the project website:

https://www.thingiverse.com/thing:5492218

It may be important that some factory made eyecups may cost 14$... 

Edited September 3, 2022 by Vroobel

[Zeta Reticulan]

Eyecups for ortho's, whatever next?

[Roy Challen]

45 minutes ago, Zeta Reticulan said:

Eyecups for ortho's, whatever next?

I like eyecups with orthos! Especially the Baader BCO winged eyecups, and Celestron Ultimas. In fact, I wonder why they are winged in one direction only, it would be better if they extended both ways, although not as far in one direction as the other. I suppose I could always make my own out of some bicycle inner tube or something.

[Zeta Reticulan]

2 minutes ago, Roy Challen said:

I like eyecups with orthos! Especially the Baader BCO winged eyecups, and Celestron Ultimas. In fact, I wonder why they are winged in one direction only, it would be better if they extended both ways, although not as far in one direction as the other. I suppose I could always make my own out of some bicycle inner tube or something.

I'm pretty sure Baader (Ohi) Eudiascopics are supplied with winged eyecups.

Not sure where mine went lol.

[Vroobel]

I'd be happy to know an exact outer diameter of other Orthos'. I think they are the same 34mm (33.95).

 

Great idea about the bicycle inner tube! I like it!

[Vroobel]

17 hours ago, Zeta Reticulan said:

Eyecups for ortho's, whatever next?

I've no idea. Falcon 10? 😏

[Vroobel]

17 hours ago, Roy Challen said:

In fact, I wonder why they are winged in one direction only, it would be better if they extended both ways, although not as far in one direction as the other.

Do you mean something like in the picture? Or like egg chair? My eyecup has 2mm collar over 1mm diaphragm to allow eyeball go into the eyecup slightly. Eyebrow, nose and cheek protect 3 other directions from the side light. For me it's very comfortable and working well. 

 

[Roy Challen]

36 minutes ago, Vroobel said:

Do you mean something like in the picture? Or like egg chair? My eyecup has 2mm collar over 1mm diaphragm to allow eyeball go into the eyecup slightly. Eyebrow, nose and cheek protect 3 other directions from the side light. For me it's very comfortable and working well. 

 

Yes, exactly like the picture, more shielding is a good idea, but not too much...or it won't fit!