Founder Optics FOT86 FL560mm f/6.5 2 ED triplet APO Refractor Telescope
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Design in Japan, Made in Taiwan
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This is an excellent performance 3-element ED APO triplet refractor designed by famous optical designer in Japan, who is a legendary designer in the Astronomy industry. The optical performance is impressive as we use 2ED glasses.
Unlike most of ED triplet which use only 1 ED glass element, we adopted 2 ED glass of S-FPL 53 and S-FPL 51 to bring a remarkable image to your eyes. With two fluoro-crown ED glass elements and fully multi-coated optics, the refractors provides a crystal clear, superb sharp, zero aberration and distortion.
Besides the lens, we use a unique design- each element is fully separated which is different from other triplet lenses.
In order to complete this unique design, it requires a very high level machining and assembly capability. We work with a 50 years optical factory located in Taiwan. This factory has a long history and keep a good partnership with many Japan famous brands. This factory known for a precisely machining capability and high technical assembly skill. Their producing know-how create accomplishment.
Besides, not only the production process, the high standard of quality control is also crucial to make FOT86 and FOT106 successfully—Quality Certification Card.
We test every unit and create this card to make customer understand the quality customer purchased. By doing so, customer can be confident with our quality and also mean we treat every unit as a delicate product not just commercial product. We are very serious to provide the best triplet to the end user.
Perfect Hybrid Drive system with 8 Ball bearings- More Smoothly!
2sets of 4pcs ball bearing at 2 sides between the drawtube and the focuser cover travel linearly. After locked the knob, there is no gap among the drawtube, 8pcs ball bearings, and the focuser cover. It does not only keep the focuser always paralleled the optic axis, but also keep it moved very smoothly.
Dual Speed Focuser- 1:11 – Extremely Accurate!
Smooth focus motion and fine focus wheel allow precision adjustment from critical focusing of eyepiece or camera.
Unique Lock Function– Heavy Loading Capability!
Special lock grabs the rack& pinion & drawtube in two direction. The design makes the focuser always paralleled the optics axis. Instead of pushing against the drawtube to eliminate focus shift while it’s focused. It’s totally breaking the traditional single point fixed design in the market. And can handle up to 8kg.
Longer Traveling Distance– Flexible for Photographing Accessories!
Unlike other focuser, longer traveling distance 95mm provide more room for adjust focus. This is very flexible for some applications.
Suit for variety photographing accessories to adjust the focuser to gain the best image. Friendly Use!
Stable Dew Shield Fixing
Smoothly slide the dew shield. Three fixing screws hold dew shield well to avoid the spinning or moving while shooting to make sure you can capture the best image. Also, three screws prevents the dew shield falling when carry telescope.
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