My Awesome Field Guide to Rocks and Minerals: Track and Identify Your Treasures (9781641525954) Replacement Lens Protect your instrument with the

Protect your instrument with the dust cover when it is not in use

Optolong believes the design of L-eXtreme filter would be better choice for fast systems in competitive price

6″ (150 mm) and 12″ (300 mm)

76um Effective Pixel Area 6280*4210 (includes the optically black area and overscan area) Effective Pixels 26MP Sensor Size APS-C A/D Sample Depth Native 16-bit (0-65535 greyscale) A/D Full Well Capacity (1×1

8° only minimal performance loss at edge of FOV Wavelength range: 400 - 700 nm Spot size: < 4

My Awesome Field Guide to Rocks and Minerals: Track and Identify Your Treasures (9781641525954) Replacement Lens Protect your instrument with theBecome a rock hound with this field guide for kids ages 7 to 10 The world of rocks and minerals is massive, amazing, and full of cool new things to uncover! My Awesome Field Guide to Rocks and Minerals teaches you the skills you need to collect, identify, and catalog your own treasures. Explore 150 different rocks and minerals, and get step by step guidelines for testing and identifying the ones you encounter out in the field. Theres also plenty of