Focal Reducers & Correctors
Celestron f/6.3 Focal Reducer & Corrector - 94175
SKU: CEL-94175
- For all Schmidt-Cassegrain telescopes; not for EdgeHD models
- This focal reducer from Celestron reduces the effective focal length by 0.63X
- Enjoy the wider field of view & faster exposure times at f/6.3 with f/10 telescopes
- f/11 telescopes, such as the C14 will perform at f/7
- The Celestron f/6.3 Reducer has four fully-multicoated elements
- Reduce your exposure times by a factor of 3!
Free shipping
Celestron 0.7X Reducer Lens for 1400 EdgeHD - 94240
SKU: CEL-94240
- Reducer for Celestron 14" EdgeHD telescopes
- Shortens inherent focal length from f/11 to f/7.7
- This reducer cuts your exposure times in half & increases field of view by 43%!
- Threads directly onto 3.25" rear cell threads
- Five-element design preserves EdgeHD flat field performance
Free shipping
$692.95
Celestron Reducer Lens .7x EdgeHD 1100 94241
SKU: CEL-94241
- Reducer for Celestron 11" EdgeHD telescopes
- Shortens inherent focal length from f/10 to f/7
- This reducer cuts your exposure times in half & increases field of view by 43%!
- Threads directly onto 3.25" rear cell threads
- Five-element design preserves EdgeHD flat field performance
Free shipping
$692.95
Celestron .7x Focal Reducer For 8 Edge HD - 94242
SKU: CEL-94242
- Reducer for Celestron 8" EdgeHD telescopes
- Shortens inherent focal length from f/10 to f/7
- This reducer cuts your exposure times in half & increases FOV by 43%!
- Threads directly onto the rear cell of the 8" HD
- 105 mm of back focus & optimized for APS-C sensors
Free shipping
$351.95
Baader Planetarium Alan Gee Mark II Telecompressor - AGII
SKU: BAD-AGII
- Reduces f/10 SCT's to f/5.9 and produces a sharp, wide, flat field!
- 35 mm clear optical aperture
- Designed by Astro-Physics' Roland Christen
- Air-spaced doublet with 7-layer anti-reflection multi-coatings
- Four pieces consist of lens cell, two 19 mm spacers (removable) & flanged end ring
- For f/10 & slower Schmidt-Cassegrain's. Will not work with Meade f/6.3 models
Free shipping
$297.00
Meade Series 4000 f/6.3 Focal Reducer - 07545
SKU: MEA-07545
- This Meade Series 4000 Focal Reducer cuts telescope focal ratios by a factor of 0.63x, converting f/10 and f/6.3 telescopes into much faster f/6.3 and f/4 instruments respectively.
- Threads directly onto Schmidt-Cassegrin SCT rear cells.
- With this Meade Focal Reducer, imaging exposure times are roughly cut in half.
- Delivers a wider field of view for visual observations.
Tele Vue Large Field Flattener for Tele Vue 101 or 127 IS Telescopes - LCL-1069
SKU: TLV-LCL-1069
- Tele Vue Large Field Corrector designed specifically for NP101is and NP127is telescopes.
- Provides a flattened image field for both the 101 mm and 127 mm Nagler-Petzval APO refractors.
- Enhances edge-of-field quality for imaging use.
- Optimally suited for use with CCD sensors measuring 35 mm or larger.
$239.95
Tele Vue 0.8x Focal Reducer Lens Body for Tele Vue NP Scopes - NPR-1073
SKU: TLV-NPR-1073
- Tele Vue Focal Reducer for NP and NPis series telescopes.
- Reduces the effective focal length of Nagler-Petzval refractors by a factor of 0.8x.
- Best suited for typical 55 mm back focal length SLR camera bodies that accept T-rings.
- DSLR camera use requires a 2.4” adapter, while CCD camera use requires the proper spacing needed to maintain 55 mm of back focus.
$279.95
Tele Vue Focal Reducer Body Adapter for 2" Focuser - RAD-1074
SKU: TLV-RAD-1074
- This adapter makes TeleVue focal reducers compatible with standard 2" focusers.
- Enables the use of Tele Vue 0.8x Reducers (NPR-1073 or RFL-4087) on NP101, NP127, or TV102 telescopes.
- Not suitable for use with NP101, NP127, and TV102 "is" models.
$54.95
Tele Vue 0.8x Focal Reducer/Flattener for Tele Vue 102 Scope - RFL-4087
SKU: TLV-RFL-4087
- TeleVue combination Focal Reducer and Field Flattener for 102 mm telescopes.
- Provides a 0.8x effective focal length reduction.
- Flattens the TV102 telescope's image field in order to optimize imaging results.
- Designed to fit standard 2" focusers as well as threaded TV102iis accessories.
- For CCD camera use, the CWT-1070, STL-1071, or TRG-1072 adapter is required to enable connection.
$299.95
Tele Vue 0.8x Focal Reducer/Flattener for Tele Vue 85/Pronto - TRF-2008
SKU: TLV-TRF-2008
- This Tele Vue 0.8x Focal Reducer and Field Flattener works in conjunction with TV-85 and Pronto telescopes.
- Transforms the TV-85 into a 480 mm f/5.6 system, and the Pronto into a 380 mm f/5.4 system.
- Flattens the field in addition to reducing the effective focal length for fast, superior quality astro-imaging operations.
- Fully multi-coated with 3 elements, this unit fits directly into 2” focusers.
- Accepts standard T-rings for 35 mm cameras.
$281.95
Starlight Instruments Starlight Integrated Paracorr System - Coma Corrector - SI-SIPS-KIT
SKU: SLI-SI-SIPS-KIT
Free shipping
$1,195.00
Stellarvue .74 Focal Reducer/Flattener for SVX080T-3SV Refractor - SFFR80T-3SV
SKU: STV-SFFR80T-3SV
- Reduce the effective focal length and flatten the field of your Stellarvue 80mm SVX Refractor!
- Only for SVX080T with 3" Stellarvue focuser
- Reduction is .74X, taking the focal ratio from f/6 to f/4.5
- Threads directly into the focuser for stability
- 48mm male threads on the camera side accept "wide" DSLR T-rings or cameras with 48mm threads
- 55 mm of back focus
$395.00
Explore Scientific 2" HR Coma Corrector - HRCC02-00 - NEAF Demo
SKU: CNP-EXS-HRCC02-00
- NEAF Demo with a Full Warranty!
- For Newtonian telescopes with 2" focusers
- Minimize inherent coma in Newtonians with this Coma Corrector from Explore Scientific
- 2" Barrel slides into focuser on the telescope side
- For visual use, use 2" eyepieces directly or insert a 2" to 1.25" adapter (sold separately) for 1.25" eyepieces
- For photography, both a M42 and M48 threaded adapter are included, allowing you to use a standard or wide T-ring
William Optics 0.8x Reducer/Flattener - P-FLAT7A
SKU: WYO-P-FLAT7A
- This William Optics 0.8x reducer/flattener is adjustable for optimum back focus.
- Adjustment depends on the William Optics refractor with which the flattener is used.
- This flattener is meant to work with the FLT132, FLT156, GT102, GT153, and the Z126.
- The FLAT7A is compatible with several types of CCD and CMOS cameras.
- The flattener is produced with Ohara optical glass.
$598.00
Takahashi 0.66X FC-35 Focal Reducer - TKA19580
SKU: TAK-TKA19580
- Reducer for Takahashi FC-100DZ, FC-100DF, FC-125, FS-102, FS-128, and FS-152 telescope models
- Shortens focal length by 0.66x
- Produces a 44 mm image circle
- Increases the speed of your optical system for optimized astrophotography
Free shipping
Free shipping
$570.00
Apertura 0.5x Focal Reducer - 1.25" - A-FR1
SKU: APT-A-FR1
- Inexpensive 1.25" Focal Reducer by Apertura
- 0.5X reduction
- Fully multi-coated doublet in black anodized cell
$29.95
Stellarvue SFFR.74 Focal Reducer/Flattener for SVX102T & SVX102T-R - SFFR102T-3SV
SKU: STV-SFFR102T-3SV
Free shipping
$395.00
Starizona Apex ED 0.65x Focal Reducer & Field Flattener - Long Version - APEXED-L
SKU: STZ-APEXED-L
- Reducer/Flattener for 500 mm+ focal length refractor telescopes and all RC and ACF telescopes
- This Apex ED Focal Reducer from Starizona reduces the effective focal length by 0.65x
- Shortens f/5.5 apochromatic refractors to f/3.6, and f/9 RC telescopes to f/5.9
- Provides a 1.5x wider field of view and 2.4x shorter exposure times
- Five-Element design ensures no compromise in optical performance
- Corrects for apo refractor field curvature and astigmatism
Free shipping
$449.00
Starizona Apex ED 0.65x Focal Reducer & Field Flattener - Short Version - APEXED-S
SKU: STZ-APEXED-S
- Reducer/Flattener for 300-500 mm focal length telescopes including 60-80 mm aperture apo refractor telescopes
- This Apex ED Focal Reducer from Starizona reduces the effective focal length by 0.65x
- Shortens f/5.5 apochromatic refractors to f/3.6, and f/9 RC telescopes to f/5.9
- Provides a 1.5x wider field of view and 2.4x shorter exposure times
- Five-Element design ensures no compromise in optical performance
- Corrects for apo refractor field curvature and astigmatism
Free shipping
$449.00
Apertura 0.5X Focal Reducer - 2" - A-FR2
SKU: APT-A-FR2
- Decrease the focal length of your telescope by half with this 2" 0.5x Focal Reducer.
- Provides a wide field while minimizing exposure times for astrophotography.
- This 2" 0.5x Focal Reducer contains fully multi-coated optics with two-element optical design.
- Black anodized lens cell curtails reflections from errant light.
- Offers considerable flexibility for set up modification.
$54.95
William Optics Adjustable 0.8x Reducer/Flattener for Z61 - P-FLAT61R
SKU: WYO-P-FLAT61R
- This William Optics 0.8x reducer/flattener is adjustable for optimum back focus.
- This flattener is meant to work with the Zenithstar 61.
- The FLAT61R is compatible with several types of CCD and CMOS cameras.
- The flattener is produced with Ohara optical glass.
$258.00
William Optics Adjustable 0.8x Reducer/Flattener for Z73 - P-FLAT73R
SKU: WYO-P-FLAT73R
- This William Optics 0.8x reducer/flattener is adjustable for optimum back focus.
- This flattener is meant to work with the Zenithstar 73.
- The FLAT73R is compatible with several types of CCD and CMOS cameras.
- The flattener is produced with Ohara optical glass.
$258.00
Baader Planetarium 2" Mark III Multi Purpose Coma Corrector - MPCC
SKU: BAD-MPCC
- Baader MPCC Mark III 2" Coma Corrector for f/4 - f/6 Newtonians
- This Coma Corrector does not require additional back focus & does not increase magnification
- Delivers 12 micron stars across a full 35 mm frame size
- Telescope side is 2" slip-fit, Camera side is 48mm
- Except a T-ring to match your DSLR, no other accessories are needed
- Works with Baader Astro T-2 System components for CCD/CMOS cameras
$207.00