Product Description
This is a special offer for customers who will be attending the Northeast Astronomy Forum in Suffern, New York April 5 & 6. Stellarvue will be displaying new telescopes at the show and offering them at a generous discount for customers who are attending the show and pre-order them here, on our website. This is a first-come, first-served offer. Only one of each listed telescope will be sold.
This SVX140T will include an upgraded 3.5" Feather Touch Focuser and our SFFX-3 photographic Field Flattener. The telescope normally sells with these upgrades for $8090.00. It comes with all the standard accessories including CNC-machined mounting rings, TP019 Losmandy-style rail, handle, and American-made SKB hard case with Polyetheline foam padding. Let us display this telescope at the show and you will get a $500 discount but you must order it now on this web page. If you cannot order the telescope listed in this Neaf Special Offer section of the website, it means the telescope has already been sold.
This is the SVX140T is a 140mm, f-6.7 apochromatic refractor made with a super low dispersion center element. We shortened the focal ratio specifically designing this telescope for imaging using our dedicated field flatteners. The performance of the SVX140T has been evaluated by Ryan Voykin of Dark Rangers Inc. Stellarvue SVX140T Review.
Optics: SVX140T-R is rated at .96 Strehl or higher as measured on our Zygo Phase Shifting Interferometer in red light. We hand figure the objective right here to minimize aberrations. Visit our SVX Optics Page to learn more about this process.
Coatings: Extreme broadband, full multi-coatings on each surface transmit more than 99.5% in the visual spectrum, as well as above and below it. The reason to extend beyond the visual spectrum has to do with imaging. CCD and CMOS detectors in cameras record beyond the visual spectrum. Broadband, full multi-coatings eliminate unwanted reflections seen on CCD images taken through telescopes that have inferior coatings.
Availability: We begin the production of all SVX objectives one year ahead of time so while it takes up to a year to perfect each objective, we usually have several lenses available when you order. This means we can generally deliver this telescope within one or two weeks depending on the availability of focusers. At the current time we have Feather Touch focusers in stock and MoonLite focusers only add a few weeks to the waiting period as a general rule. Our sales increased in 2024 above what we anticipated and as a result, we are now out of Stellarvue 3" focusers. We plan to have 200 of these focusers completed about mid April so delivery of telescopes ordered with 3" Stellarvue focusers will be delayed until Spring. You can still order this telescope made with a Stellarvue focuser but delivery will be delayed. Call us for more specific information on delivery time estimates for the telescope and focuser you are looking for. (530) 823-7796.
What's included?
- SVX140T telescope
- CNC-machined tube rings
- Your choice between the Losmandy style TP013 or TP019, or the Vixen-Style TP012 mounting rail.
- The Stellarvue #HAN-1 handle is included.
- Three different precision focusers are offered. Each comes with 2" and 1.25" adapters.
- American made, waterproof SKB case with custom cut polyethylene foam interior that does not absorb moisture like polyurethane foam and is much more durable. This is the best foam material available for a heavy telescope.
Select the focuser you prefer: The SVX140T may be ordered with one of three different focusers. Simply select the one you prefer above. Here is a synopsis of the differences:
- The Stellarvue 3" focuser. This focuser has 4.5" of travel and 2" and 1.25" compression ring adapters. This is our brand focuser that is well known as a stable and smooth 3" focuser with a highly accurate 8 to 1 reduction that allows absolutely precise focusing. This is the same as used on our smaller aperture telescopes. Both Optec, Prima Luce and ZWO motors attach directly to this focuser allowing even more precise focusing.
- The Starlight Instruments 3.5" focuser, with 4.5" of travel and 2" and 1.25" compression ring adapters. This is an American-made focuser that is equally smooth to the focuser above but is larger. Both Optec and Starlight Instruments make motors for these focusers.
- The Moonlight Nightcrawler 3.5" focuser with various extension tubes and 2" and 1.25" adapters. This is an advanced, electronic, computerized focuser preferred by dedicated imagers. It is the most expensive upgrade, but for those who want perfection when it comes to imaging, this is considered one of the best. The downside is a very short focuser draw tube length which is great for imaging stability but requires various extensions when converting to visual use. Since most high-end imagers rarely or never look through their instrument, this is usually no big deal. *Please note that the default color for the Nitecrawler will be RED unless specified otherwise. For a full list of available color options visit www.focuser.com.
The larger aperture of all of these focusers significantly reduces vignetting seen in smaller focusers when imaging.
We include American-made CNC mounting rings, a retracting dew shield, metal dust cap.
Optional Accessories:
Case: We now offer an American-made, waterproof hardcase with durable custom cut foam lining to protect your instrument against damage and the elements.
Mounts: For strictly visual use, we are developing a heavy-duty alt-azimuth mount that will hold the SVX140T with great stability. We expect to offer it later this year.
For imaging we recommend:
Losmandy G11G or
Paramount MYT. This is a great choice for accurate long-exposure imaging.
Optional Visual Accessories:
You will need a star diagonal, eyepieces, mount, and tripod to observe with this telescope. You will find that a finder scope is helpful in locating objects. We recommend the following:
Finder Scope: Optional. We recommend the F050W2 finder scope. The proper ring system for this finder is the R050DA ring system.
Diagonal: Optional. Please note: You can purchase our best 2" diagonal above and save $50.
Eyepieces: Optional. We recommend our best eyepieces for this telescope: a complete set of the Stellarvue Optimus eyepieces. Save money when you select the complete set at the top of the page. This set comes with a large, thickly padded case that holds the Optimus set, two additional 1.25" eyepieces, a 2"-star diagonal, and two other items such as a photographic flattener and small camera.
Optional Photographic Field Flatteners
Field Flattener: To image with this telescope at f-6.8, use the giant SFFX-3 photographic Field Flattener. If you are using the Stellarvue 3" focuser, use the SFFX-1. Both of these flatteners are made at Stellarvue to a more concise spherical specification. Prior to the development of these our generic flatteners varied in specification. We highly recommend these flatteners to cover your telescope into an imaging platform.
Reducer Flattener: To image at around f- 5.25, using an APS-c or smaller sensor, we currently offer the SFFR.72 photographic field flattener/reducer. This is an imported unit sold by a number of sources on the market. It is the best unit we have found so far. Based on the success of our in-house field flatteners, we are currently working on a new in-house reducer/flattener that will have the same optical specification as our flatteners. We expect to have this unit ready by the end of 2024.
SPECIFICATIONS:
Objective Lens:
Air-spaced, hand-figured 140 mm, 938 mm focal length (f-6.7) fully multi-coated, apochromatic triplet using a combination of extra low-dispersion and Lanthanum elements. Lens is mounted in an adjustable steel cell. Test report included.
Tube Assembly:
All aluminum, Instrument White, fully baffled.
Dew Shield:
7.33" diameter retracting aluminum dew shield in Instrument White with black anodized fittings.
Dimensions:
OTA: 6 1/8" diameter, 31" long with dew shield retracted and 36" long when extended.
Weight:
Telescope tube weighs 22 pounds. Rings weight 1.2 pounds each. Slightly heavier with the Moonlight focuser option.
Rings:
Very heavy-duty CNC mounting rings made using 6061 T6 aluminum plate. Five threaded 1/4-20 holes top and bottom spaced 1.5" and 60 mm apart with one in the center. 5 mm side hole for mounting a red dot or MRF finder.
Rail: Your choice between the Losmandy style TP013A or TP019, or the Vixen-Style TP012 mounting rail.
Handle: The Stellarvue #HAN-1 handle is included.
Case:
Our optional American-made, waterproof case is made by SKB. We combine this case with a custom, durable polyethylene foam that does not absorb moisture or easily tear as does softer and less durable polyurethane.
Star Diagonal:
Optional. Please note: You can purchase our 2" quartz dielectric diagonal upgrade for only $199 by selecting it at the top of the page. The upgrade diagonal is the same as the D1040Q deluxe dielectric diagonal, except it does not come with a 1.25" adapter since the telescope already comes with one.
Light Gain:
400 X! (human eye = 1)
Contrast & Color Correction (1-10): 10
Click here for our online operator's manual: SVX140T Manual
