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Vixen Optics Coma Corrector Ph R200ss Telescope

Vixen Optics Coma Corrector Ph R200ss Telescope
  • Product Code: eq177309
  • Availability: In Stock

$1,880.97 $2,652.17

Designed for Vixen Optics Coma Corrector PH R200SS Telescopeemploys a Wynne-type 3-element in 3-group optical design to correct and virtually eliminate coma aberration from the OTA's primary parabolic mirror surface. The corrector delivers sharp pinpoint star images across the entire field of view - all the way to the edge. It has a 0.95x magnification and reduces the R200SS effective focal length to 760mm to give it a faster f/3.8 focal ratio. Threads on the housing are designed for user-supplied camera-specific T-rings for astrophotography, and its 44mm diameter circle is designed to cover a 36mm x 24mm full frame DSLRs. A large 50mm aperture lens allows for ample edge-of-field illumination. The same AS anti-reflective optical coatings limit light loss and deliver high light transmission for improved image brightness. Light loss and "ghost flare" in images are further corrected due to the complete matte finish inside the corrector.

Magnification: 0.95x    Focal Length with R200ss: 760mm, f/3.8    Anti-Reflective AS Optical Coatings    Lens Configuration: 3 Elements/3 Groups    Image Circle: 44mm Diameter    Threads for Optional Photo T-Adapter

Parameters
Magnification0.95x
Focal Length760mm, with R200ss OTA
Focal Ratiof/3.8, with R200ss OTA
Thread SizeMale M56
Pitch 0.75mm
52mm for filters
Packaging Info
Package Weight0.5 lb
Box Dimensions (LxWxH)5.8 x 3 x 2.9"

Related Questions and Answers

Q: 1. Will fit Meade lx70 mount?

A: This will not this is dedicated to AP, GP2, and GPD2 Mounts.

Q: 2. Will this work on an Meade ETX 70 focuser?

A: It will not.

Q: 3. Will it be fully compatible with Sirui VA-5 Ultra-Compact Video Head?

A: Yes the PH-120 plate will fit the Sirui VA-5.

Q: 4. Can I use this with Sirui monopods ?

A: Yes, the Sirui PH-10 Carbon Fiber Gimbal Head is compatible with Sirui monopods.

Q: 5. Are these with 6mm or 8mm couplings, or neither?

A: The Vixen Optics Slow Motion Control Knob for AP, GP2, and GPD2 Mounts is a replacement knob for those mounts. The knobs mount on a shaft that is roughly 6mm in diameter.

Q: 6. What size is it? Doesn't say!

A: The hood does not have a standard designated size. This is a proprietary bayonet mount lens hood for the Pentax 18-55mm f/3.5-5.6 (non-WR) Lens.

Q: 7. What is the width of the Sirui PH-10's base?

A: Sirui PH-10 Carbon Fiber Gimbal Head base mount diameter is 50mm.

Q: 8. Will Vixen Optics Porta II Tall+ Alt-Azimuth Mount work with this scope?

A: Yes it is compatible.

Q: 9. Will it work with other brand t mounts?

A: Yes as long as the threading's are 42mm then it will work. That is correct.

Q: 10. is this gimbal compatible with the Sirui W-2204 Waterproof Carbon Fiber Tripod?

A: Yes, the Sirui PH-30 Carbon Fiber Gimbal Head will be compatible with the Sirui W-2204 Waterproof Carbon Fiber Tripod.

22/09/2024

[0.5 lb] Excellent Newtonian for imaging and viewing. No false color and I did not do any collimation. It worked out if the box.
I have taken cool pictures of Orion Nebula, Rosette Nebula, Horsehead nebula, Pleiades when mounted on a GEM.
I can upload these images if BH can facilitate.
The porta mount is another excellent piece and highly recommend for alt azimuth viewing. Light sturdy and design is excellent.

5
18/09/2024

[0.95x] I love my telescope and the slow motion control on the tripod is awesome

5
01/09/2024

[0.95x] Exceptional optics and worth the price with low weight for entry level mounts.
Takes better images than 2-3 times pricier triplet apos.

5
09/08/2024

[0.95x] Telescope arrived very fast and double boxed. Collimation of telescope was spot on as shipped. Telescope is very light weight for an 8 inch scope at only 12 pounds. The picture incorrectly shows accessories not part of this item number, the text is correct stating it only is the ota and no finder or flip mirror is included. I knew this but other people may not notice, B&H should update the picture. Views are crisp and clear and the focus is excellent. I see no need for an optional dual speed focus knob that is available for an extra cost. Done astrophotography and had no trouble focusing my DSLR. Could resolve the globular cluster M13 with many pinpoint stars. Detail on Mars and Saturn are excellent the large center obstruction is not a problem for me. I find the scope to be better that a SCT as far as edge sharpness is concerned. Very happy with this telescope. I own several high end telescopes and rate this Vixen very highly. That being said it is not comparable to a very high end APO costing 5 or 6 times the cost. You get what you pay for and the VMC200L is an excellent telescope.

5
06/08/2024

[0.5 lb] You need this adapter when using Vixen Flip mirror in order to use 2 eyepieces.

5
21/07/2024

[0.95x] Couple this adapter with the Vixen 2” flip-mirror for an ideal combo. Allows easy stable switching between eyepiece sizes and easy framing for your image.

5
29/06/2024

[0.95x] The Vixen VMC200L offers excellent value in a telescope. The 200mm primary mirror provides nearly 8 of aperture, which provides sufficient light grasp to observe many astronomical objects. Focusing is done via a smooth operating rack and pinion focuser with a 2 drawtube so the primary mirror does not move while focusing and there is absolutely zero image shifting while focusing as a result. Also unlike a more common SCT, the tube is not enclosed by a corrector plate, which allows the scope to cool down (reach ambient temperature) significantly faster than an enclosed SCT or MCT. Also, no corrector plate reduces the dewing issue unless the humidity is extremely high and the wind is calm. The included attached metal handle makes mounting the optical tube to a GEM much more convenient and feels a lot safer holding the scope while securing the dovetail. Although the spider vanes holding the secondary are fairly thick, the structure holds collimation well and the scope was delivered without need for of collimation. Also this made in Japan optical tube is backed by a Vixen 5 year warranty.

5
22/06/2024

[5.8 x 3 x 2.9"] This plate REALLY IDEAL match with my Vixen Porta II mount and make possible mounting my OTA Sky Watcher 4.5' Neutonian. Together with Vixen Red Point Finder and Vixen Eyepieces it makes perfect system for visual observation - very simple, convenient, stable. In fact, I purchased completely new telescope for just$!

5
16/06/2024

[0.5 lb] Bought this polar meter to use with my recent purchase of the vixen polarie star tracker.... so easy to align with the north star, buy one of these if you want easy alignment with polarie star... mind you later on I will purchase the polar scope...

5
06/06/2024

[0.5 lb] I have many astronomical telescopes and this one has become one of my favorites,! Powerful and very handy to use, easy to balance on the mount, and having crisp clear optics is an important plus! Very fine optics from Vixen in Japan. Awesome product!

5

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