Askar FRA 400 5.6 Astroscope Quintuplet Dual ED Air spaced APO Astrographic Cam

Description
 
Askar FRA 400/5.6 Astroscope Quintuplet Dual ED Air-spaced APO Astrographic Camera for Flat-field Refractor Astrograph
Description:
– Welcome to our brand new Askar FRA series! The FRA, Flat-field Refractive Astrograph, is a refractive equipment with built-in flat field correction. FRA can also be applied in visual observation. So the FRA series is among the few versatile and quality astrophotographic devices in the current astronomy market.
– For easy parameter conversion between different lenses, the first-come of the FRA family features a Petzval-like quintuplet design (two pieces of which are special ED glass) with an aperture of 72mm, a focal length of 400mm and a focal ratio of f/5.6, providing a 44mm image circle.
– The FRA400 quintuplet astrograph has adopted modern optical design with a retractable dew shield, a 3″ rack-and-gear-based high-precision reducer containing a 360-degree rotator, M68×1 thread, a 2″ adapter ring and a 1.25″ visual adapter. The reducer is equipped with fine focal adjustment function for more precise calibration in practical observation or sky imaging.
– Its excellent in controlling and possibly avoiding chromatic aberrations. The image quality is also optimized to satisfy various observing or imaging purposes.
– It’s worth mentioning that FRA 400/5.6 has a pair of fashionable-looking and multifunctional patented tube rings. Various practical attachments are available on three sides of the tube rings which is really a convenience for practical observation or imaging activities.
– The FRA400 quintuplet astrograph has adopted modern optical design with a retractable dew shield, a 3″ rack-and-gear-based high-precision reducer containing a 360-degree rotator, M68x1 thread, a 2″ adapter ring and a 1.25″ visual adapter. The reducer is equipped with fine focal adjustment function for more precise calibration in practical observation or sky imaging.
– Its excellent in controlling and possibly avoiding chromatic aberrations. The image quality is also optimized to satisfy various observing or imaging purposes.
– It’s worth mentioning that FRA 400/5.6 has a pair of fashionable-looking and multifunctional patented tube rings. Various practical attachments are available on three sides of the tube rings which is really a convenience for practical observation or imaging activities.
– F/5.6 is a relatively fast focal ratio for astrophotographic use, but we further provide an ultra focal reducer to satisfy the special needs of experienced imagers, greatly reducing the practical focal ratio to f/3.9. This inventive combination supports full-frame imaging and can dramatically shorten the exposure time, which is a pioneering design in the astrophotography field.
– The inborn mission of Askar FRA400 is to simplify and enhance our customers observing and imaging practice, bringing them infinite surprises when exploring the boundless universe.
Package Included:
– 1 x Astroscope
– 1 x Pair of Tube Rings
– 1 x Dovetail Plate
– 1 x User Manual
 
 
Shipping policy
1.No any handle fees.
2.Items will be shipped in 1-3 business days on payment received.
3.We ship to eBay’s address only. Please make sure your address in eBay is matched with your shipping address before payment.
4.We provide Economy Int’l Shipping and Express shipping services.
5.We ship to USA,Europe by SpeedPAK and other countries by International parcel with registed T/N.
6.speedPAK standard is free,and Expedited shipping is an extra $25-65
Country                                               Estimated Delivery Time(speedPAK standard)      (Expedited shipping)
United States                                       About 7-14 business time                                           About 5-8 business time
Canada/Australia                                About 8-15 business time                                           About 5-8 business time
Asia                                                       About 15-20 business time                                          About 5-8 business time
Most of the European                          About 12-20 business time                                          About 5-10 business time
Most of the European Union               About 10-15 business time                                          About 5-8 business time
South America                                      About 25-37 business time                                          About 6-11 business time
About us
1.We are founded in 2010, is a professional purchasing B2B & B2C tool.
2.We have more than 200,000 lines in stock and they can be shipped in 1 to 3 business days.
3.If you have any question or problem, please contact us.  We will reply you in 24 hours and give your a satified answer.
 
Please note:
1.If the customer does not specify whether to send products in European or American standards, please send the products shown in the pictures uniformly.
2.Due to system limitations, it is not possible to set the shipping fee for each city and zip code, if you choose expedited shipping when placing
3.your order and your address is in the remote address list of DHL/FedEx/UPS, we may contact you to charge you for the address remoteness fee.
4.We will arrange the shipment according to the address the buyer provided, So please confirm and check the address details you filled when purchase.
5.Average delivery time for reference only, actual time varies for different countries and related to uncontrollable factors such as weather, natural disasters and pandemic.
6.Service Transit Time is provided by the carrier, weekends and holidays are excludes, so the shipping time may be longer than we promised, particularly during the holiday season, so please be patient.
7.Any tracking information updated will inform you in time, you can also get the tracking information from official website.
8.If you need the best price, please contact me,We will offer you the most affordable price, and we will be the lowest priced seller among Chinese sellers.
9.We support retail and wholesale.
 
 
 
 

USD : 97.69