Skip to content
  • ✨ FREE SHIPPING ON ORDERS OVER $60 ✨
  • ✨ FREE SHIPPING ON ORDERS OVER $60 ✨
SALELONGSKIRTGSALELONGSKIRTG
  • Orion
  • Celestron
  • Primalucelab
  • Ioptron
  • Chroma
  • Login
  • Cart / $188.00 2
      • × Takahashi Camera Angle Adjuster for Takahashi FSQ-106ED For DiscountTakahashi Camera Angle Adjuster for Takahashi FSQ-106ED For Discount 1 × $98.00
      • × Optolong Clear Sky Camera Filter – 77mm SupplyOptolong Clear Sky Camera Filter – 77mm Supply 1 × $90.00

      Subtotal: $188.00

      View cartCheckout

  • 2

    Cart

    • × Takahashi Camera Angle Adjuster for Takahashi FSQ-106ED For DiscountTakahashi Camera Angle Adjuster for Takahashi FSQ-106ED For Discount 1 × $98.00
    • × Optolong Clear Sky Camera Filter – 77mm SupplyOptolong Clear Sky Camera Filter – 77mm Supply 1 × $90.00

    Subtotal: $188.00

    View cartCheckout

“Optolong Clear Sky Camera Filter – 77mm Supply” has been added to your cart. View cart
Sale!
Home / Optec

Optec TCF-Si Focuser Sale

$725.00 Original price was: $725.00.$94.00Current price is: $94.00.

Browse
  • Astrozap
  • Ats
  • Avalon
  • Baader
  • Celestron
  • Chroma
  • Coronado
  • Dew Not
  • Explore Scientific
  • Field Tested Systems
  • Gerd Neumann
  • Hotech
  • Ioptron
  • Losmandy
  • Lunt Solar
  • Meade
  • Officina Stellare
  • Opt
  • Optec
  • Optolong
  • Orion
  • Pegasus Astro
  • Pentax
  • Planewave
  • Primalucelab
  • Qhy
  • Qsi
  • Revolution Imager
  • Sbig
  • Sharpstar / Askar
  • Sky Watcher
  • Software Bisque
  • Spectrum Telescopes
  • Starizona
  • Starlight Instruments
  • Starlight Xpress
  • Stellarvue
  • Takahashi
  • Uncategorized
Recently Viewed
  • Takahashi SR-L Wooden Tripod – EM-400 Online Sale Takahashi SR-L Wooden Tripod – EM-400 Online Sale $874.99 Original price was: $874.99.$98.00Current price is: $98.00.
  • Description
  • Reviews (0)

Optec TCF-Si Focuser

The TCF-Si Focuser by Optec:

Mechanically, the Optec TCF-Si is a robust Crayford style motorized focuser with high repeatability, no play and nearly zero backlash of only 0.0013-inch. Optec’s implementation is ideal for applications which require exact focus such as CCD imaging or film astrophotography. A geared stepper motor rotates the drive shaft with one step rotation of the motor equal to a 0.000086-inch movement of the drawtube. Focuser control is now accomplished via direct serial connection between the focuser and computer. The unit adds 3.5-inches to the telescope’s back focus as measured from the front to the end of the drawtube when at the mid-focus position. The total travel of the drawtube is 0.6-inches or 7000 steps. The TCF-Si focuser can easily handle cameras and instrument packages weighing up to 10 pounds. The TCF-Si can be used with a PC for automatic focus with some of the popular camera control software. OPT Product Number: OP-17668

Product image depicts a Optec TCF-S Focuser for illustration purposes.

Reviews

There are no reviews yet.

Be the first to review “Optec TCF-Si Focuser Sale” Cancel reply

Related products

Sale!
Optec TCF-LYNX 3″ Temperature Compensating Focuser Online Hot Sale
+
Quick View

Optec

Optec TCF-LYNX 3″ Temperature Compensating Focuser Online Hot Sale

$1,895.00 Original price was: $1,895.00.$86.00Current price is: $86.00.
Sale!
Optolong Clear Sky Camera Filter – 82mm Fashion
+
Quick View

Optec

Optolong Clear Sky Camera Filter – 82mm Fashion

$205.00 Original price was: $205.00.$90.00Current price is: $90.00.
Sale!
Optec Remote Keypad for Optec TCF-S/TCF-S3 Focusers Online Hot Sale
+
Quick View

Optec

Optec Remote Keypad for Optec TCF-S/TCF-S3 Focusers Online Hot Sale

$95.00 Original price was: $95.00.$76.00Current price is: $76.00.
Sale!
Optolong 31mm LRGB Filter Set on Sale
+
Quick View

Optec

Optolong 31mm LRGB Filter Set on Sale

$291.00 Original price was: $291.00.$89.00Current price is: $89.00.
Sale!
Optec TCF-Leo with FocusLynx Hand Control Hot on Sale
+
Quick View

Optec

Optec TCF-Leo with FocusLynx Hand Control Hot on Sale

$1,395.00 Original price was: $1,395.00.$98.00Current price is: $98.00.
Sale!
Optolong L-Pro Light Pollution Telescope 1.25″ Camera Filter Fashion
+
Quick View

Optec

Optolong L-Pro Light Pollution Telescope 1.25″ Camera Filter Fashion

$149.00 Original price was: $149.00.$88.00Current price is: $88.00.
Sale!
Optolong L-eNhance Filter – 1.25″ Discount
+
Quick View

Optec

Optolong L-eNhance Filter – 1.25″ Discount

$179.00 Original price was: $179.00.$88.00Current price is: $88.00.
Sale!
Optec Sagitta Off-Axis Guider (Manual Version) For Discount
+
Quick View

Optec

Optec Sagitta Off-Axis Guider (Manual Version) For Discount

$695.00 Original price was: $695.00.$89.00Current price is: $89.00.
Latest
  • Takahshi 1.25-Inch Eyepiece Adapter Online Sale Takahshi 1.25-Inch Eyepiece Adapter Online Sale $108.00 Original price was: $108.00.$98.00Current price is: $98.00.
  • Takahashi Wide Mount T-Ring for Nikon DX-WR Online Takahashi Wide Mount T-Ring for Nikon DX-WR Online $167.00 Original price was: $167.00.$87.00Current price is: $87.00.
  • Tele Vue 0.8X Reducer – TV102 Online Sale Tele Vue 0.8X Reducer – TV102 Online Sale $394.99 Original price was: $394.99.$99.00Current price is: $99.00.
  • Tele Vue 1 Micron Indicator Kit – 2″ Cheap Tele Vue 1 Micron Indicator Kit – 2″ Cheap $629.01 Original price was: $629.01.$95.00Current price is: $95.00.
Best Selling
  • Chroma Blue Filter – 1.25-Inch Cheap Chroma Blue Filter – 1.25-Inch Cheap $154.99 Original price was: $154.99.$97.00Current price is: $97.00.
  • Shelyak Star Analyser 100 Supply Shelyak Star Analyser 100 Supply $142.63 Original price was: $142.63.$95.00Current price is: $95.00.
  • Celestron Ultima Pan Tilt Head Tripod Fashion Celestron Ultima Pan Tilt Head Tripod Fashion $86.95 Original price was: $86.95.$69.60Current price is: $69.60.
  • Sky-Watcher EQ6-R Pro w/ Wifi Adapter For Sale Sky-Watcher EQ6-R Pro w/ Wifi Adapter For Sale $1,944.99 Original price was: $1,944.99.$89.00Current price is: $89.00.
Featured
  • iOptron iPANO AllView Pro Camera Mount Online Hot Sale iOptron iPANO AllView Pro Camera Mount Online Hot Sale $828.00 Original price was: $828.00.$99.00Current price is: $99.00.
  • Chroma LoGlow Light Pollution Filter – 1.25-Inch Fashion Chroma LoGlow Light Pollution Filter – 1.25-Inch Fashion $275.00 Original price was: $275.00.$90.00Current price is: $90.00.
  • Bob’s Knobs C8 Metric Collimation Knobs – Black Oxide Sale Bob’s Knobs C8 Metric Collimation Knobs – Black Oxide Sale $20.95 Original price was: $20.95.$19.95Current price is: $19.95.
  • ESATTO 3-inch for Takahashi TSA 120 Adapter Online now ESATTO 3-inch for Takahashi TSA 120 Adapter Online now $295.00 Original price was: $295.00.$89.00Current price is: $89.00.
Top Rated
  • Chroma Blue Filter – 1.25-Inch Cheap Chroma Blue Filter – 1.25-Inch Cheap $154.99 Original price was: $154.99.$97.00Current price is: $97.00.
  • Shelyak Star Analyser 100 Supply Shelyak Star Analyser 100 Supply $142.63 Original price was: $142.63.$95.00Current price is: $95.00.
  • Celestron Ultima Pan Tilt Head Tripod Fashion Celestron Ultima Pan Tilt Head Tripod Fashion $86.95 Original price was: $86.95.$69.60Current price is: $69.60.
  • Sky-Watcher EQ6-R Pro w/ Wifi Adapter For Sale Sky-Watcher EQ6-R Pro w/ Wifi Adapter For Sale $1,944.99 Original price was: $1,944.99.$89.00Current price is: $89.00.
CONTACT US

Please feel free to contact us if you have any problem.

Open Time: 8:00AM - 6:00PM

Company Info
  • Contact Us
  • My account
  • Track your order
Service Center
  • Term & Conditions
  • Returns & Refunds
  • Shipping Info
  • Privacy Policy
SIGN UP AND SAVE

Subscribe to get special offers, free giveaways, and once-in-a-lifetime deals.

    bg_image
    • Contact Us
    • My account
    • Track your order
    Copyright 2025 © Salelonrtg
    • Orion
    • Celestron
    • Primalucelab
    • Ioptron
    • Chroma
    • Login

    Register

    Don't have an account? Register one!

    Register an Account

    Login

    Lost your password?