|
The APM XWAs come in 20mm, 13mm, 9mm, 7mm (soon), 4.77mm, 3.5mm
The Stellarvue Optimus is in 20, 13.5, 9, 4.7, and 3.6mm
The Explore Scientific is in 25mm, 20mm, 14mm, 9mm, 5.5mm
The TeleVue Ethos is in 21mm, 17mm, 13mm, 10mm, 8mm, 6mm, 4.7mm, 3.7mm
The APMs and Stellarvue are identical optically.
The TeleVues have the best edge of field correction and cost a lot more than the others. The APMs/Stellarvues are very close in correction to the TeleVues.
Last edited by Don Pensack; 17-01-2021 at 09:44 AM.
|