William Optics FLT 156 - 6" f/7.8 Fluorostar APO Triplet Refractor - 3.7" Rack & Pinion Focuser - Red

If you'd like to flatten the field when doing photography through the FLT 156, this field flattener will do the trick. It has adjustable back focus, accepts 2” filters, and presents M48 threads on the camera side and M92 threads on the scope side. The APO design & Ohara glass produce amazing results.

If you want to reduce the effective focal length of the FLT 156 to f/5.6 while also flattening the field, check out this adjustable 0.72X reducer/flattener. The triplet APO optics are made with Ohara glass for beautiful results. It is designed with full frame cameras in mind, and has M92 threads on the telescope side to fit the FLT 156. Image circle for the 156 is 44.4 mm and back focus is 60.8 mm.

Upgrading your telescope with a 2” diagonal allows you to use a wide range of 2” eyepieces and other barreled accessories. This diagonal has a carbon fiber body and dielectric coatings. It threads onto the rear cell of the telescope and comes with a 2” to 1.25” adapter so you can use 1.25" eyepieces in the diagonal as well.

The Tele Vue 16 mm Nagler eyepiece, with it’s beautiful 82-degree field, will produce 76X when used with the FLT 156. Add a 2X Barlow and double the magnification to 152X, then use the Barlow with any other eyepieces you add to your collection.

A 2X Barlow is one of the most popular telescope accessories available because it doubles the magnification of any eyepiece! Since this is a 2” 2X Barlow with a 1.25” adapter, it will work great with both 1.25” and 2” eyepieces, but does need a 2” diagonal or focuser to accommodate its larger 2” insert barrel. Grow your magnification choices quickly by adding a good 2X Barlow to your accessory case.

If you want to reduce the effective focal length of the FLT 156 to f/6.2 while also flattening the field, check out this adjustable 0.8X reducer/flattener. The triplet APO optics are made with Ohara glass for beautiful results. It is designed with full frame cameras in mind, and has M92 threads on the telescope side to fit the FLT 156. Image circle for the 156 is 44.4 mm and back focus is 65.3 mm.

Make locating objects easier by mounting this sturdy red dot finder to the FLT156. Because the William Optics RDF offers a choice of reticles, you can match them to the type of object you're viewing and then adjust the brightness to allow you to easily center the object in the finder’s reticle.

Attach your Canon EOS DSLR to the M48 threads on the back of the optional flattener or reducer for the FLT 156 with this T-ring. M48 T rings for other camera brands are also available.

Attach your Nikon DSLR to the M48 threads on the back of the optional flattener or reducer for the FLT 156 with this T-ring.