Lunt 0.8X Reducer/Field Flattener for Nighttime Imaging with the MT80, MT100 & MT130
$375.00
Specifications:
- .8x Reducer/Field Flattener
- 2″ Nose Tube
- Connections:
- 63x1mm Threads
- 68x1mm Threads
- 54x.75mm Threads
- Male T-Thread at Exit
- 39x.75 internal thread at Exit
- Compatible for F7 Telescopes Between 80-130mm
In stock
Description
The CAA 0.8x Reducer/Field Flattener is an optimal accessory for those who are interested in astrophotography- Perfect to use with any camera of your choice!
The Reducer/Field Flattener offers a wider field of view through your system, working to decrease the focal length of your system. Containing Multi-Coated optics and housed by a sturdy but light weight aluminum body, this accessory is a must for all photographic observers.
Providing multiple thread types to be used on a variety of focuser types, the CAA Reducer/Field Flattener is compatible with T-Thread adapters of your choice.
1 review for Lunt 0.8X Reducer/Field Flattener for Nighttime Imaging with the MT80, MT100 & MT130
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Phil Hoppes (verified owner) –
I purchased this flattener for my LS80MT telescope. It appears to work fairly well. One thing a user/buyer should know is the back focus on this is not precise. The folks at Lunt told me it is about 55mm. What I found for my OTA the best position was 60.8mm from the back face of the exposed (not the threads) reducer barrel to the surface of my ZWO camera imager. In order to find this I imaged over numerous nights actually starting at a 49mm back focus and then incrementally increasing it until I actually went past my 60.8mm distance and I noted other areas were starting to distort. If you purchase this item you will most likely need to do the same. Once I found the sweet spot I got good results. The camera I tested this with was an ASI1600MM which has 3.8um pixels and a 4656×3520 resolution. I tested this using both images and looking at stars in the corners and edges as well as using the FWHM Eccentricity module in PixInsight.