Lens Scope Converter

This adapter converts Nikon F-mount lens to a telescope.

• You need PEAK TS1961 10x loupe as an eyepiece
• Wide angle of view (~40degrees), long eye-relief (~20mm)
• The image is inverted

You need

• Nikon F-mount lens with aperture ring (G-type or E-type lenses are not suitable)
• PEAK TS1961 10x loupe or its compatible (Nikon version exists, shown at right above)
• (optional) 2mm tapping screw

• Print the thing as supplied posture. No support needed.
• A bit finer layer height would be better to form precise thread (ex. 0.15mm per layer)
• To fix the adapter to the lens securely, use 2mm tapping screw.

Open the aperture as wide as possible (smallest F-number).

FAQ

Q1: Is the magnification ratio?

A1: magnifcation ratio = (focal length of the lens) / 30

Q2: Which lens can we use?

A2: You can use any F-mount lenses with aperture ring. Since G-type or E-type lenses have no aperture ring, the aperture is closed when the lens ls detached from the camera body.

Q3: What conditions for F-no. of lens?

Q3. F5.6 is sufficient. Faster lens makes the eye-point more flexible.

Q4: How about adding tripod socket to the adapter?

A4: To avoid the trouble of dropping lens, I intentionally omit tripod thread or lanyard holes. Please use lenses with tripod seat.