Optolong L-eNhance 1.25"

<img src="https://cdn.shopify.com/s/files/1/0327/2569/6648/files/comparison.jpg?v=1624746966" alt="Optolong Filter Comparision"><br><br> <p>Here's a cool comparison with a HyperStar C9.25 using no filter, a L-Pro Light Pollution Filter, and the new L-eNhance Filter from Optolong. The L-Pro has a 53% reduction of background light, and the L-eNhance has an amazing 91% reduction.</p> <br><br> <img src="https://cdn.shopify.com/s/files/1/0327/2569/6648/files/Rossette-eNhance.png?v=1624744573" alt="Scott Tucker L-Enhance Filter"> <br><br> <ul> <li>Imaging Target： Rosette Nebula</li> <li>Camera : ZWO ASI294MC Pro</li> <li>Lens : HyperStar C9.25</li> <li>Filter : Optolong L-eNhance</li> <li>Exp time : 20 x 120"</li> <li>Taken by Starizona's: <a href="https://www.astrobin.com/users/Tucker512/">Scott Tucker</a> </li> </ul> <img src="https://cdn.shopify.com/s/files/1/0327/2569/6648/files/NGC7000-eNhance.png?v=1624744726" alt="Scott Tucker L-Enhance Filter"><br><br> <h3><b>Taken with 98.63% full moon</b></h3> <ul> <li>Imaging Target： North America and Pelican Nebulas</li> <li>Camera : ZWO ASI294MC Pro</li> <li>Lens : Samyang 135mm f/2</li> <li>Filter : Optolong L-eNhance</li> <li>Exp time : 20 x 60"</li> <li>Taken by Starizona's: <a href="https://www.astrobin.com/users/Tucker512/">Scott Tucker</a> </li> </ul> <img src="https://cdn.shopify.com/s/files/1/0327/2569/6648/files/Screen_Shot_2021-06-26_at_3.11.23_PM.png?v=1624745505"><br><br> <ul> <li>Imaging Target： North American Nebula</li> <li>Camera : ZWO ASI183MC Pro</li> <li>Lens : HyperStar C6</li> <li>Filter : Optolong L-eNhance</li> <li>Exp time : 60 x 45"</li> <li>Taken by Starizona's: <a href="https://www.astrobin.com/users/HappySkies/">Steven Koenig</a> </li> </ul> <img alt="VSR300 11" src="https://cdn.shopify.com/s/files/1/0327/2569/6648/files/VSR300_11_5000x_1f240355-f473-40af-8f0a-cc87e93fefe8.jpg?v=1624745135"><br><br> <ul> <li>Camera : CentralDS Astro A7s (cooled at -2C)</li> <li>Lens : Canon EF 300mm f/4L (non-IS)</li> <li>Filter : Optolong L-eNhance</li> <li>ISO : 6400</li> <li>Tracker : Star Adventurer</li> <li>Autoguide : none</li> <li>Exp time : 1min X 81frames w Dark, Bias frames</li> <li>Offered by Optolong co-photographer <a href="https://www.facebook.com/vega.cheng">Vincent Cheng</a> </li> </ul> <p><img src="https://cdn.shopify.com/s/files/1/0327/2569/6648/files/Screen_Shot_2021-06-26_at_3.14.00_PM.png"><br><br></p> <p>After a simple red structure transformation, the effect of SHO Hubble color can also be simulated. !</p> <p><br><br></p> <ul> <li>Substrate:B270</li> <li>Thickness:1.85mm</li> <li>Tpeak:T>90%</li> <li>Blocking range:300-1000nm</li> <li>Blocking depth:light pollution line blocking >99%</li> <li>Surface quality:60/40</li> <li>Transmitted Wavefront RMS:λ/4</li> <li>Parallelism (arcsec):30s</li> </ul>