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The innovative Pressure-Tuner system allows for fine adjustments to the H-alpha line
TR619 Voice Amplifier Microphone with FM RadioRetekess TR619 wireless voice amplifier portable speaker and microphone is a really great aid for teachers or doing presentations or running meetings
it allows you to directly connect the most common DSLR
Frequency stabilization
Long Perng 1.25" 14.5mm Long Eye Relief Eyepiece Wi-Fi Controlled Telescope The innovative Pressure-Tuner system allowsLong Perng introduce its 1,25" Long Eye Relief Eyepieces Long Eye Relief Eyepieces Model Number: DCS 14. 5mm Focal Length: 14. 5mm Eye Relief: 20mm Barrel Size: 1. 25 inches Field of View: 55 degrees Lens Construction: 7 elements in 4 groups Material: Aluminium Coating: Fully multi coated
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