- Price Guarantee
Focal Reducer/Field Flattener for the new Stellarvue SV80A Doublet Apo. This IS NOT for the SV80ST Triplet.
This reducer/flattener is optimized for our SV80 Access doublet lens. The flattener inserts into the 2" focuser. The 0.8X focal reduction converts the 80 mm f-7 into an f-5.6 with a focal length of 448 mm.
This reducer/flattener has a standard 42 mm camera connection thread and 48mm/2" filter thread on opposite end. Standard 2" filters can be added to the reducer/flattener when imaging. The backfocus of the unit is 55 mm. Since a DSLR with t-ring has a 55 mm backfocus, plug the reducer/flattener into the focuser and then thread on the camera/t-ring to the flattener as shown below.
If you are using a CCD camera, an additional set of extension tubes may be needed depending on the backfocus of the camera. You need to know how much distance there is between the cameras T-thread and the ccd chip. It is important that the distance from the back of the field flattener to the chip be maintained at 55 mm. If the ccd camera has a backfocus of only 35 mm, a 20 mm extension will be needed. See the example below.
In this example the camera had a 35 mm backfocus so a 20 mm extension tube was needed. It threads in between the back of the field flattener/reducer and the camera as shown. Please call us and we can assist you in getting the exact adapters for your particular camera.
In this case the extension tube must be a standard t-thread (M42 X.75). Our selection of 42 mm extension tubes may be viewed here. SKU:SFFR80AWidth:9.00 (in)Height:6.00 (in)Depth:4.00 (in)Shipping:Calculated at Checkout
We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.
To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.
Our 100% Price Guarantee has some limitations:
- You must purchase the item from our website before requesting your Price Match Guarantee
- Promotions such as rebates and buy one, get one free offers are not eligible
- The item must be in stock on the competitors website
- The competitor must be an online store, they may not have a retail location
- The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
- The competitor must be an Authorized Retailer of the product in question
- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
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