TS Photoline 80mm f/7 FPL53 doublet apo refractor
The new Photoline Apo from TS-Optics offers very good performance in practically all fields of observation and astrophotography. Image quality sets standards in this class. The lens uses FPL53 extra-low dispersion glass from Ohara (Japan) and lanthanum glass. This high-quality apo element and relaxed f/7 focal ratio allow for an image that is virtually free of color errors. The double lens also allows for faster cooling and lighter construction.
The best mechanics guarantee an excellent image over the years and success in astrophotography
The best optics can only be used successfully if the mechanics are correct. Savings are often made in the wrong place here. Not so with the Photoline 80mm f/7 Apo.
The advantages and features at a glance:
♦ 2.5" ball bearing focuser with rack and pinion (pinion) adjustment. The bearing is decoupled from the shooter adjustment.
♦ Oversized extension tube with 60mm free opening for full illumination even at full format.
♦ 1:10 micro reduction for ultra-precise focus
♦ High-quality CNC tube with internal screens and very good internal blackening: no disturbing stray light
♦ M63x1 internal thread enables stable screw-in adaptations for astrophotography
♦ Dew cap can be pushed in; the transport length is then only 46 centimeters
♦ Modern, multicoated 2 element lens with FPL53 as APO element and special lanthanum glass
♦ High quality CNC clamps and GP style dovetail bar with photo tripod connection
Astrophotography with the TSAPO80F7:
The Photoline SD-APO 80mm f/7 is suitable for unrestricted astrophotography, but as with any fast refractor, the field needs to be corrected so that the stars on the edge remain nice and round. We highly recommend the following correctors, the correctors and adapters are linked in the accessories area.
♦ TSFlat25DEL - 2.5" universal image field corrector without changing the focal length: The corrector is suitable for all sensors up to full frame. The corrector is screwed directly to the internal thread M63x1 of the focuser.
The working distance from the M48 connection thread to the camera sensor is 65 mm. If you are using a camera with a 55mm flange focus, such as an SLR with a T-ring, you will also need an M48 10mm extension #TSVF210.
♦ TSREDJM63S - 0.8x Field Corrector with Focal Length Reduction: The corrector reduces the focal length to 448mm and improves the aperture ratio to f/5.6. The corrector is screwed directly to the internal thread M63x1 of the focuser.
The working distance from the M48 thread to the sensor is 57.6 mm. If you are using a camera with a 55mm back focus (distance from wire to sensor), simply turn the fine adjustment to 2.6mm and you have the perfect distance. There is no battle of adapters.
||2 element lens (doublet), air-spaced
||FPL53 from Ohara (Japan) + lanthanum glass as second element
||Aluminium - CNC machined
|Outer diameter dew shield:
||ball bearing mounted 2.5" rack and pinion focuser
|Connection eyepiece side:
||1.25", 2" and female M63x1 thread
||123 mm from 2" receptacle / 161 mm from M63 thread