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Digital
Focus Counter Products
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DFC for Celestron SCTs
Celestron early C5 (dual fork arm), C5 / C5+
(single fork arm), C5-S, C5-SGT, C8, C8+, C8-S, C8-SGT, C11, C11-SGT, C14, Celestar 8,
Celestar 8 Deluxe, CG-11, CG-14, CGE 1100, CGE 1400, Classic 8, CM-1100,
CM-1400, CPC 800 / 925 / 1100, Fastar 8, G-5, G-8, Great Polaris C8, NexStar 8 GPS, NexStar 11 GPS,
Polaris C8, Powerstar 8, Super C8, Super C8+, Super Polaris C8, Ultima 8 / 11
A manual version of Digital Readout, which replaces the focus knob of
most Celestron SCTs. (Specify
telescope make, model and year.)
| NOTE |
The top two pictures show the front and back of
the manual DFC designed for the Meade SCT. Inside the back end, you
can see the coupler that attaches to the mounting collar (not shown).
The bottom images show parts included with the DFC for the Celestron
C8. They are (from left to right) the mounting collar, replacement
knob, coupler and DFC body including sleeve, counter and knob. |
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DFC for JMI MOTOFOCUS
Upgrades a MOTOFOCUS
unit with a piggy-back DFC at the time of purchase (see exceptions below).
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NOTE
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* The piggy-backed DFC is
not available for the Meade ETX Series, Celestron non-GPS NexStar 5/8 Series
and Celestron SP6 telescopes because of the
very small size or difference in style of the MOTOFOCUS motor.
After-purchase upgrades are available for rack-and-pinion MOTOFOCUS units
(except those listed above), at an additional cost for labor. Call for
details.
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DFC
can be piggy-backed on our regular MOTOFOCUS
units (not upgradable after purchase). (Shown with old-style hand
unit) |
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The
DFC display is a three-digit mechanical counter. Most MOTOFOCUS
units can also be equipped with our Digital Read Out
(DRO) system. |
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DFC for Meade SCTs
Meade 203SC, 2080, 2120, Gem
mounted 2080 / 2120, Basic (2080 / 2120), LX2, LX3, LX5, LX6, LX10, LX50 7"
Maksutov / 8" / 10", LX90, LX100 8" / 10", LX200 7"
Maksutov / 8" / 10" / 12" / 16", LX200GPS 8" / 10"
/ 12" / 14" / (16" ?),
LX200R 8" / 10"
/ 12" / 14" / (16" ?),
LXD55 SC-8, LXD75 SC-8
A manual version of Digital Readout, which replaces the focus knob of most Meade 8" or larger SCTs.
(Specify
telescope make, model and year.)
The piggy-backed DFC works on
ROUND FOCUS KNOBS ONLY, not on hex-shaped knobs.
| NOTE |
The top two pictures show the front and back of
the manual DFC designed for the Meade SCT. Inside the back end, you
can see the coupler that attaches to the mounting collar (not shown).
The bottom images show parts included with the DFC for the Celestron
C8. They are (from left to right) the mounting collar, replacement
knob, coupler and DFC body including sleeve, counter and knob. |
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What is a Digital
Focus Counter?
The Digital Focus Counter is a
low-cost mechanical alternative to the electronic DRO.
The three-digit counter display allows 10 turns of the shaft before
returning to zero. If you want focusing repeatability with an NGF
focuser, SCT (Schmidt-Cassegrain Telescope) manual focus or MOTOFOCUS, this
unit will do the job. It is available for all NGF focusers (both
manual and motorized versions), as a manual unit which replaces the focus
knob on 8" or larger SCTs (not recommended for CCD imaging due to space
limitations and problems with image shift) and as a piggy-back option for
most MOTOFOCUS units. (The piggy-back option is available only at the
time of purchase of a new MOTOFOCUS unit and cannot be added later.)
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Customer
Comments
No comments at this time.
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Frequently Asked Questions
(FAQ)
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Questions? |
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No
FAQs at this time. Let us know if you have any suggestions. |
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