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TS 61EDPH - 6-element apochromat with lens diameter φ = 61 mm and focal length f = 274 mm, developed by Teleskop-Service (Germany) for astrophotography in wide frames. • 61 mm aperture
• 274 mm focal length
• high light f / 4.5 allowing for quick matrix exposure
• 44 mm of corrected field of view allows the use of full frame matrices
• three-lens (triplet) lens made of FPL53 glass, covered with MC layers
• a screw-on three-element field corrector made of ED glass, with a working distance of 55 mm from the camera mount (M48)
• 2.5 "rack and pinion, 360 ° rotatable
• 2 "and 1.25" adapters included
• possibility to screw 2 "filters directly to the equalizer
• clamps with a handle, finder foot and dovetail mounting rail, made in CNC technology
• dovetail in the Vixen standard, also has a 1/4 inch socket for mounting on a photo tripod
• a handle with a 1/4 inch female thread offers the possibility of attaching a guide scope or a camera • construction: FPL53 glass triplet, with an air gap
• effective light: f / 4.5
• lens (without equalizer): f / 5.5
• Equalizer: 3-element ED, with a multiplicity of 0.81x
• diameter of the reference point: 90 mm
• tube length: 264 mm (refractory folded / retracted)
• weight: 1.8 kg (with a corrector and clamps, 1.35 kg without a corrector) 24 months
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