Product gross weight: 1150g Packaging box size: 320x95x221mm
Features:
1. Multi functional 50mm aperture guide lens with builtin double helix focusing device.
During the focusing process, the spiral focusing ring does not rotate and is connected to an automatic guiding device.
3. It can also be used as a right angle positive image optical viewfinder (eyepiece and prism diagonal sold separately).
4. This compact and lightweight mini guide range is perfect for guiding, searching, or locating.
Specifications:
1. Brand: SVBONY
2. Model: SV198
3. Optical type: achromatic refractometer
4. Lens structure: 2 pieces per set
5. Pipe material: Aluminum
6. Aperture: 50mm/1.97in
7. Focal ratio: f/4.1
8. Focal length: 206.6mm/8.13in
9. Coating: Full multilayer coating
10. Blackened lens edge: Yes
11. Comforter: Double helix+telescopic design
12. Double helix focusing device focusing stroke: 11mm
13. Focusing seat accuracy: 0.1mm
14. Coarse focusing stroke: 38mm
15. Focusing seat accuracy: 1mm
16. Connecting eyepiece: 1.25 and T2
17. Basic installation type: Vixen standard interface
18. Color: White
19. Pipe diameter: 55.5mm
20. Diameter of exposed cap: 58mm
21. Total length: 223mm
22. Net weight: approximately 770 grams/28.1 ounces
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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Curabitur vel sem mi. Proin in lobortis ipsum. Aliquam rutrum tempor ex ac rutrum. Maecenas nunc nulla, placerat at eleifend in, viverra etos sem. Nam sagittis lacus metus, dignissim blandit magna euismod eget. Suspendisse a nisl lacus. Phasellus eget augue tincidunt, sollicitudin lectus sed, convallis desto. Pellentesque vitae dui lacinia, venenatis erat sit amet, fringilla felis. Nullam maximus nisi nec mi facilisis.
How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
