Description: Description Please Note:All Sharpstar/Askar refractors undergo physical, mechanical and optical QC inspections at the factory, and an inspection checklist is included with each telescope.We may partially open the scope boxes to ensure that the scope has been inspected/certified by the manufacturer but we do not open the scope and inspect it again.However, if you would like us to perform a mechanical and cosmetic inspection of your telescope again before we ship it, just request this in the comments field when you place your order. We will be happy to do this at no extra cost for this scope, but this will delay your shipment by 1-2 business days. Note that we are unable to perform optical tests/inspections.Quick OverviewAskar FRA300 Pro Petzval refractor with 60mm aperture and f/5 focal ratio, ideal for wide-field imaging of the deep skyQuintuplet Petzval ED design delivers flat field across 44mm image circle with virtually no chromatic aberrationIncludes rotatable 2.5” dual-speed rack-and-pinion focuser, Vixen-style dovetail, tube rings, and carrying handleLength = 303mm, Weight = 3.12kgAskar FRA300 Pro Product DetailsThe Askar FRA300 Pro Petzval astrograph incorporates a five-element design to deliver flat fields and sharp, color-free images. With a 60mm triplet objective with an ED element and a two-element corrector, this f/5 scope has a focal length of 300mm and makes an ideal instrument for capturing stunning wide-field images of the deep sky over a 44mm full-frame image circle.The fast f/5 Petzval design means no additional field flatteners or focal reducers are required which offers flexibility with back focus when incorporating additional accessories in the optical train.This premium astrograph includes a 2.5” rack-and-pinion dual-speed focuser that’s fully rotatable through 360 degrees to make it easier to frame images. The focuser tube and included adapters allow for direct attachment of cameras with M42, M48, or M54 threads. Note that the limited available back focus, though sufficient for cameras and some imaging accessories, is not sufficient to allow use of this scope with a diagonal and eyepieces for visual use.The attractive spray-coated optical tube of the FRA300 Pro is complemented with a set of CNC-machined aluminum rings, a 300mm Vixen-style dovetail, and a carrying handle with a slot for a guide scope. The entire tube is just 303mm long and weighs 3.12kg.For the price, this fast apochromatic telescope offers excellent value and can approach the performance of telescopes that cost three or four times as much. This is especially true when matched with astronomy cameras with smaller 1" and 4/3" sensors. Cameras with larger APS-C and full-frame sensors may, in some cases, reveal slight aberrations at the edge of the field.Askar FRA300 Pro Specifications:Aperture size：60mmFocal length：300mmFocal ratio：f/5Objective lens: Quintuplet fully air-spaced Petzval APO (including one ED element)Image circle：44mm full-frameMaximum accessory connection (with the focuser fully retreated)：Imaging mode:71mm (from the base of M42×0.75 male thread)67mm (from the base of M48×0.75 male thread)71mm (from the base of M54×1male thread)Total length：303mmNet weight：2.26kgGross weight：3.12kgRear-end thread：M48x0.75 male threadMain tube diameter = 82mm; Dewshield diameter = 91.3mmWhat's in the BoxFRA300 Pro OTATube ringHandleAskar 300mm Vixen dovetail plateM54, M48 and M42 adapters (1 each)Manual Payment Terms Payment must be received within 7 business days of auction closing.All our items will be shipped to buyer's payment address. So please check your shipping address before you make the payment. Shipping Terms Normally, we will arrange the shipment within 2 business days of receipt of payments.A tracking number will be emailed to the buyer at the time of shipment. Feedback If you are satisfied with our product and service, please leave 5 star positive feedback.However, if you are unhappy with the item or our service,please contact us before you leave the negative feedback. About US We are Skyoptikst Optical Technology CO., LTD. More information,please click our web site.If you have any questions please contact us.
Price: 949 USD
Location: Guangdong
End Time: 2024-01-25T13:59:47.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: SHARPSTAR
Type: Telescope
Mount Type: Unmounted
Model: Five piece dual ED fully separated APO
Objective Lens Diameter: Less Than 60 mm
Aperture: 60 mm
Country/Region of Manufacture: China
