This Head-Worn Binocular Magnifier Loupe from Vixen Optics features a lightweight metal headband so you can wear it on your head for hands-free use. Included are three spare lenses for changing the magnification.

Lightweight Metal Headband    Allows Hands-Free Use    Includes 3 Spare Lenses    1.5x, 2.5x, and 3.5x Magnification

1.45 x 1.10" (one side)

Fits head sizes from 20.5-24"

• 1.5x: 3.9-7.9"
• 2.5x: 2.8-5.1"
• 3.5x: 2.0-2.8"

Related Questions and Answers

Q: 1. How many degrees does this attachment move, both vertically and horizontally?

A: I would have to say about 15 maybe 30 degrees each way total travel. I bought mine for the last super moon. Had a 1600mm lens attached to this and was easily able to track the movement of the moon. At 1600 mm I had to constantly shift both axis and it did a great job. It is not super fast, meaning the threads on the adjustments are pretty fine, so if you are trying to track birds of something moving you will have to crank pretty quickly to keep up. But if that bird lands on a branch and you zoom an and want to adjust to frame the shot properly you can easily do it with some practice.

Q: 2. I have the 7X version from a few years ago. Is the new 5X better?

A: The VisibleDust Quasar R 5x Sensor Loupe Magnifier with Dark Adaptation Technology has a new Dark Adaptation technology, including 14 LED diodes (vs 6 LED diodes in the previous 7x loupe).

Q: 3. Load capacity (in lbs)?

A: The weight capacity of the Vixen Optics APP-TL130 is 18 lb, including counterweight .

Q: 4. Will this loupe work for the SONY a7RIV?

A: Yes, the VisibleDust Quasar R 5x Sensor Loupe Magnifier with Dark Adaptation Technology can be used for inspecting the sensor on the Sony A7R IV.

Q: 5. Will this work on an Meade ETX 70 focuser?

A: It will not.

Q: 6. How does one find dso with this mount and a dslr?

A: Yes. The Vixen Optics Polarie U Star Tracker Camera Mount Head can be used for deep sky observation and astrophotography with a DSLR camera. The head can be mounted on a tripod in standard orientation or on its side, depending on how you're using it, and is compatible with both 3/8"-16 and 1/4"-20 tripods with a standard 1/4"-20 stud for your camera. This is just the mount head, you'll need to supply your own camera, tripod, and ball head to use it properly.

Q: 7. Has anyone, or can it, be used for polar alignment of small camera drives/rotators?

A: The Vixen Optics Piggyback 1/4"-20 Fine Adjustment DX BH #VIPBAUDX • MFR #3562 can be used for Geared Alt/Az Movements It is possible for polar alignment .

Q: 8. Wil this work with a celestron power seeker 127 eq?

A: I cannot confirm or deny. But my expertise suggest that it will work.

Q: 9. My older Visible Dust Loupe does not focus properly on the sensor of my Nikon Z-mount bodies. Does this this new loupe do so?

A: Unfortunately no but this Carson SensorMag works for mirrorless cameras: https://bhpho.to/3O1L4AY

Q: 10. What tripod mount? 1/4-20? 3/8-16?

A: This permutation of the BT81S-A arrives with the binocular optical tube assembly (OTA) only. Eyepieces, mount, and a tripod or base need to be supplied by the user. Mount block dovetail bar for SX/GP tripods