Built for wide-field imaging, the Gear Series 80mm Triplet APO Refractor optical tube assembly from Starfield features a triplet lens with an Ohara FPL-53 apochromatic element. The ball bearing-supported 2.5" focuser accepts 2" and 1.25" eyepieces and accessories and is sturdy enough for heavy cameras and astrophotography equipment. The manual camera angle adjuster provides framing options during your imaging sessions. The OTA is compatible with an optional motorized focuser and requires a separately available tripod or pier and mount for use.

480mm Focal Length, f/6 Focal Ratio    Triplet Lens with FPL-53 ED Element    Internally Baffled Tube    Fully Multicoated Optics    2.5" R&P Focuser with 1:10 Gearing    Camera Angle Adjuster    Accepts 2" & 1.25" Eyepieces/Accessories    Sturdy CNC Rings    Handle with Accessory Slots    Retractable Dew Shield

• 80mm diameter aperture
• 480mm focal length and fast f/6.0 focal ratio allow low exposure times
• Triplet lens with FPL-53 apochromatic element for true color rendition without aberrations across the entire field of view
• Self-centering 2" to 1.25" reducer with brass compression rings included

• 2.5" rack-and-pinion focuser with 1:10 gearing, Teflon bushing, and ball bearing support can accommodate heavy astrophotography cameras, filter wheels, etc.
• Accepts 1.25" and 2" eyepieces and accessories
• Compatible with optional focusing motor
• Aluminum tube with matte powder coat and hard anodizing finish
• CNC-machined aluminum rings and handle with slots for accessories
• Retractable dew shield
• Long Vixen-style dovetail bar

Related Questions and Answers

Q: 1. What would I need to use my existing 2" Optolong filters with this telescope?

A: No other purchase is necessary. It is set up for 2"

Q: 2. Where is the 1.25" adapter?

A: The MFR does not include any visual accessories with this scope.

Q: 3. I purchased this scope a few weeks ago. I have yet to achieve focus using a dslr without the diagonal. I've purchased 2" extension tubes that just dont fit on the tubes that came with it. What extention tubes actually fit on this?

A: What make and model of camera are you using and where in the scope are you mounting the camera

Q: 4. What other accessories are required to have a flat field with a ZWO ASI533MC-Pro?

A: Will you be using the 2" or the 1.25" for your astrophotohraphy.?

Q: 5. What accessory should I use to mount guiding camera or eyepiece? The focusing distance not sufficient to achieve focus...

A: This should work. iOptron TT-FTA100 Camera to Telescope Adapter BH #IOTTFTA100 • MFR #TT-FTA100 https://www.bhphotovideo.com/c/product/1160280-REG/ioptron_tt_fta100_camera_to_telescope.html

Q: 6. Hi, i have a very good video tripod, but the scope will not attach. Do you have a link to a part that will secure this scope to my tripod? I have a pic of tripod if you need it. Thanks.

A: You will need the Farpoint Vixen-to-Losmandy-D Dovetail Adapter BH #FAFVS2D • MFR #FVS2D to make the connection.

Q: 7. Viewing wise what size Mak-cas would be equal to a 102 mm refractor ?

A: You cant match the field of view (how much of sky you see) with a mak but a mak 130 to 150 would yeld the same viewing resolution

Q: 8. Is there a custom hard case available for this scope?

A: There is no dedicated case for the Explore Scientific 102mm f/7 FCD100 Apo Triplet Refractor Telescope (OTA Only) BH #EX102F7ARTO • MFR #FCD100-10207-02 that B&H sells.

Q: 9. Can you use 72mm screw on filters on the objective end?

A: The objective end of the Sky-Watcher Evostar ED APO 72mm f/5.8 Refractor Guidescope does not accept screw on filters.

Q: 10. What do you need to connect a Cannon EOS 50 mark II ?

A: To mount your Canon EOS M50 Mark II Mirrorless Camera to the Sky-Watcher Evostar ED APO 72mm f/5.8 Refractor Guidescope (OTA Only) BH #SKS11180 • MFR #S11180 you will need the Explore Scientific T-Mount Adapter (2") BH #EX510365 • MFR #510365 and the Vivitar T-Mount to Canon EF-M Mount Adapter BH #VIHFT2EOSM • MFR #HF-T2-EOS-M