Home > Astronomical Telescopes > Altair Astro > Refractor Series
(Details shown apply to the default selection)
Model: SWAS80ED-OTA1Brand: Altair
Generally In Stock, Please Confirm Before Ordering
Featuring Genuine ED optics, the Starwave ASCENT 80mm F7 ED Doublet refractor has an 80mm objective lens capable of both visual observation and wide-field imaging in one telescope.
ED optics offer improved colour correction, which produces a higher contrast image, whilst allowing a short, portable telescope tube.All metal. There are no plastic parts, anywhere in this product except for the rear dust cap.Proper Dual Speed Geared focuser with micro focusing (essential for fine detail).The focuser is imaging capable and the rear 2" Focuser pushfit adapter has 3x thumbscrews and a brass compression ring. Diagonal barrels aren't marred, cameras are firmly held and aligned.Flat field fast focal ratio F5.6 imaging with the optional 0.8x field flattener/reducer.What you get:
Starwave 80mm F7 ED Doublet Objective, with full multicoatings on all surfaces in a collimatable lens cell with QC serial number.2.5" Dual Speed Geared focuser with 1:10 ratio fine-focusing knob.Optional 10x50 finder with metal body and front focusing lens. Metal mounting stalk is able to attach direct to the optical tube (screws provided) or with the Altair Universal Quick Release Finder Bracket (code: UNIFBR-QRB). A high quality 23mm wide field eyepiece with laser etched, independently focusing reticule.2"-1.25" Push-Fit Adapter with non-marring brass compression ring.Front push-fit metal dust cap, rear plastic plug style dust cap.Genuine CNC machined tube rings, fully adjustable for balance and rotation.Metal dovetail plate so you can use the scope with just about any telescope mount including iOptron, Skywatcher. Metal dewshield 103mm Outer Diameter 15cm length, non-retractable, can be unscrewed for lens cleaning.The optical tube is 54cm length and weighs about 2.6kg.The ED advantage. When compared to small Achromatic refractors of similar size, length and focal ratio, the Starwave 80ED offers better mechanics for easier focusing, and truer colour rendition thanks to the ED optics. The Starwave 80 ED delivers a sharp "contrasty" image with good colour correction and tight star images. The 80mm aperture gathers about 131 times more light than the human eye, and in a dark-sky location, observation of star clouds and larger more extended objects is most enjoyable. With a higher power eyepiece or Barlow lens, this telescope will show the planetary disc of Jupiter, the Great Red Spot, and the major cloud bands visible as irregular stripes across the disc, as well as the four largest Galilean moons and their movements from hour-to-hour. Saturn's rings and Cassini division are easy to see at higher magnifications. The mo. The convenience of a refractor. This is the perfect scope to get you, family and friends familiar with the night-sky, or started in astro-photography. Unlike most starter-telescopes, both optical and mechanical quality are very good. We don't sacrifice one for the other. Our philosophy is not to start with low quality equipment, but to include high quality optics in a beginner telescope at a good price to make using the product enjoyable. The Starwave 80 ED is an ideal beginner's choice for astrophotography with your DSLR or Altair camera. It is much easier to use than a Newtonian reflector, with a smaller tube which is easier to mount and keep steady. Unlike reflectors, the optics do not require frequent collimation (alignment) before use, so the product is virtually maintenance free aside from the usual yearly cleaning of the lens. For visual observerving, the Starwave 80ED fits almost any telescope mount. Please contact us for recommendations based on your intended observing style.Daytime viewing. By adding an optional image-erecting prism diagonal, the Starwave 80 ED becomes a real performer when it comes to terrestrial and nautical observation, offering performance in the same category as ED spotting scopes costing many times the price. Simply increase the brightness on the Red Dot Finder and you can use the scope with pinpoint accuracy during daytime.
Mount choices: We recommend the iOptron CEM25P GOTO Mount (more of an imaging focused product), the EQ3-2 or EQ5 (for visual use and casual imaging), or HEQ5 (imaging / visual use on a budget). If you prefer an electronic gadget-free experience, the Altair Sabre mount for visual observing, which requires no power. Contact us for options.Astro imaging or terrestrial photography with the Starwave 80ED: A smooth dual speed "non-slip" 2.5" Geared focuser is supplied, with tension adjustment, able to carry a DSLR or CMOS camera such as the Altair Hypercam or GPCAM, and filter wheel if required. The optics are compatible with the Lightwave 0.8x field flattener / reducer and the Lightwave 1.0x field flattener. These are positioned at approx. 55mm from the rear flat face of the reducer/flattener to the camera sensor. The machined aluminium tube transmits heat to the optics, which benefits users of dew control systems. It also allows the optics to shed heat rapidly for fast cool-down to the ambient temperature - a must for best performance with any telescope. The ASCENT 80ED is the perfect size for the iOptron CEM25P imaging mount.Finder scopes and auto-guiding: You can attach the Altair 32mm Miniguider or MG32 for auto-guiding and easy guide-star selection, in a compact light weight package. The Altair 60mm Deluxe Finder Scope and Guide Scope system is also compatible, and attaches to the focuser using the Universal Quick Release Finder Bracket, or with Guide Scope Rings. Magnification: The magnification of a telescope is determined by dividing the telescope focal length in mm by the eyepiece focal length in mm. For example the Starwave ASCENT 80ED has a 560mm focal length, which, when used with the Altair Ultraflat 24mm eyepiece yields 23x magnification. (E.g. 560mm divided by 24mm = 23x magnification). If you use a Barlow lens (such as the Altair 2x Flat Field Barlow) just multiply the magnification by 2x. In this case, the result is 46x.Here's a table with Altair Ultraflat and Planetary eyepiece focal lengths, and the resulting magnifications with the Starwave 80ED:
Eyepiece focal length: 5mm 6mm 7mm 10mm 15mm 18mm 24mm 30mmMagnification: 112x 93x 80x 56x 37x 31x 23x 23xFinding objects in the telescope. Using a low power eyepiece at around 25x you can quite easily spot a bright or large object by sighting along the telescope, however fainter and smaller objects would benefit from the optional "finder scope" accessory. For imaging with your DSLR, you'll need a 50mm M48 Extension Tube and M48 DSLR adapter to insert into the 2" focuser aperture.
For imaging with the Altair Hypercam or GPCAM cameras, you can attach a camera or filter wheel by means of the rear 2" "push-fit" visual back (which has 3x thumbscrews for extra tight grip and zero flex).
Starwave ASCENT 80ED technical specifications: Optical Design: Fully Multicoated ED Doublet lens in collimatable cellAperture (mm): 80 mmFocal Length: 560 mmFocal Ratio: F7 (F5.6 with 0.8x reducer)Optional Finderscope: 8x50 focusing with focusing reticule.Highest Useful Magnification: 189 xLowest Useful Magnification: 11 xLimiting Stellar Magnitude: 12Resolution (Rayleigh): 1.74 arc secondsResolution (Dawes): 1.45 arc secondsLight Gathering Power (Compared to human eye): 131 x approx.Optical Tube Length: 54cmOptical Tube Weight: 2.6kg Approx.
Be the first to Write a Review for this item!
Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or email@example.com.
The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.
The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.
Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 2pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services.
Please note International customers will need to contact us for a shipping price prior to ordering via the website. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.
If you have any questions regarding stock levels or delivery, please get in touch.
Rother Valley Optics now have a loyalty point scheme active on the website. As you can see from the products, every item has a point value. Each pound you spend with us, you will receive 1 loyalty point. 1 point is worth 1p. You can accumulate these points as you shop with us, then when you are over £5, you can spend them on the website! Easy as that.
Even if you collect most of your items from our shop, you can still order via the website and select the "shop collection" delivery option. Then you can come to our shop, collect your item and still get your points!
Please note this scheme is online only. Customers who order via the telephone can still be added to the scheme manually. Please ask for more details on this. Before placing orders online, please make sure you are registered with us first otherwise your points won't be allocated.
So happy shopping and if you have any questions about the scheme or any other queries, please get in touch.
Rother Valley Optics
Finance is now available on most products above £250! We offer 12, 24, 36 and 48 months with a fixed 15.9% typical APR. Please note this can't be done through the website at this moment in time. You will need to email us or drop into the shop to sort out finance. As long as the item is above £250, finance is generally available!
Please note some items are NOT eligible for finance. Please contact us for eligibility first.
Please get in touch with us today to find out if you're applicable.
You must be over 18 years to apply, live in the UK, have a valid UK bank account and not be bankrupt. Your credit file will be searched on application to see if you are eligible.
Rother Valley Optics Ltd is registered in England and Wales 04762707. Registered Office: 21 Station Road, Kiveton Park, Rotherham, S26 6QP. Rother Valley Optics Ltd acts as a credit broker only. Rother Valley Optics Ltd are authorised and regulated by the Financial Conducts Authority. Credit provided subject to age and status..
If you have any questions about this, simply give us a ring or drop into the shop for a chat.
- - - Rother Valley Optics Ltd
01909 774 firstname.lastname@example.org
Customers who bought this item also bought: