SVBONY SV193 Focal Reducer 2 Inch 0.8X Field Flattener Telescope Accessory for SV503 80mm F7 ED Telescope
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Availability:
In Stock.
Arrives
Thursday, May 15
Features
- Focal reducer and field flattener is one of the essential accessories for astrophotography; SV193 2 inch 0.8x focal reducer and field flattener for refractor telescopes
- With advanced refractor; SV193 0.8x focal reducer can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo
- The front end is a standard 2-inch socket to connect to the main lens; and the back end is M48x0.75 threaded to connect to the camera bayonet; support Full Frame Camera
- Accepts 2 inch filters; includes standard 2 inch filter thread to add light pollution filter you need
- The 0.8 times defocusing system shortens the exposure; it can meet the needs of astrophotographers who need sufficient exposure in a short time
Brand: SVBONY
Material: Aluminum
Photo Filter Thread Size: 50.8 Millimeters
Coating Description: Multi Coating
Water Resistance Level: Not Water Resistant
Product Dimensions: 2"L x 2"W
Product Dimensions: 4.84 x 3.81 x 3.58 inches
Item Weight: 10.6 ounces
Item model number: FCAW9152B
Date First Available: May 12, 2021
Manufacturer: SVBONY
Country of Origin: China
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 15
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Me llego manchado. Nada que no se solucionara con una mi kit de limpieza de lentes, pero igual es algo raro para algo nuevo. Asumo error en el control de calidad del producto. De ahi en fuera funciona perfecto.
Reviewed in the United States on June 2, 2024 by David Ruiz
Reviewed in the United States on April 30, 2024 by Perfecto, excelente calidad Perfecto, excelente calidad
Not happy at all. You can definitely see the stars in all four corners look like eggs. When you look at a non cropped picture like my Christmas Tree star cluster and Cone Nebula shot you can see what I’m talking about. I do not recommend. I also had a sv503 that I purchased that the whole focuser just came loose during a session. I walked out to check on my rig and noticed that the camera was completely sideways. You could literally wobble the focuser back and forth. I purchased the ATO and reducer back in September and only got to use it a handful of times. I’d recommend maybe saving a couple bucks and purchase something of more reliable quality. When I contacted customer support. All they did was send me a couple of screenshots and an explanation of what a retaining thumbscrew was used for and after a couple of emails svbony dropped the ball on me. Not happy but lessons learned trying to save a couple of bucks.
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Reviewed in the United States on December 3, 2022 by Paul from CT Paul from CT
Excelente producto, cumple con las especificaciones del fabricante y solo depende a que clase de telescopio lo acople.
Reviewed in the United States on March 6, 2024 by Betelgeuse
The flatner works well when not adding anything between the flatner and the dslr camera. On a CCD you will need a 55mm space between the camera sensor and the flatner. DSLR camera already measure 55mm so just the flatner is the only thing needed. The flatner was made for small sensor like the one that comes with the ccd cameras so a little bit of egg shape stars might still form. You might need to process the stars with a lens distortion tool in adobe.
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Reviewed in the United States on October 5, 2023 by Xavier
This is advertised as being for the SV503 but, with an additional spacer, it works well with my 550.
Reviewed in the United States on December 27, 2023 by Randallh Randallh
I received the field flattener at the end of November, and unfortunately it had two full thickness defects in the optical coating, about a mm in diameter each. They show up as the white spots near the periphery in the image, it's remarkably hard to take pictures of lens features. I contacted customer service the day I received the lens, both through Amazon and Svbony's site. Initially the Amazon email didn't respond, but Svbony's site email did, but only redirected me to the Amazon support site. This support did respond to a second email, and requested a few more images and then asked me to try to wipe off the defect with a soft cloth. After that they told me they'd send out a replacement. That was 2 weeks ago, and it's now been a month since I received the defective field flattener. I've sent two additional emails asking for updates that have both been ignored. I'm very disappointed in their customer service. Update - January 5, 2022 I received the replacement field flattener last night, about 5 weeks after starting the process. I debated docking 1 or 2 stars for the hassle, but decided on one star, because the flattener does seem to work well. I'll know for sure once the clouds clear out, but I'm glad to have a good piece of equipment to look forward to using now.
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Reviewed in the United States on December 30, 2022 by csudvm2003 csudvm2003
need to know if there is a t mount that fits this field flattener a7riv
Reviewed in the United States on November 3, 2022 by Mark P.