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Air Gun Home Forum Index » Optics » Hawke HoneyComb Sunshade    View previous topic :: View next topic  Hawke HoneyComb Sunshade   Posted: Sat Oct 06, 2012 4:54 am Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND Has anyone tried one of there yet? This time of year with the sun low in the morning an ordinary shade is no good, so I was thinking of gettin one of these. Al _________________   Posted: Sun Oct 07, 2012 5:06 pm WhitleyStu Veteran Member Joined: 15 Feb 2011 Posts: 202 Location: NE Indiana U.S.A. I have read reviews on these and the only down side I can find is that it reduces total light into the objective lens by ~ 25% and honeycomb effect can be slightly seen in a low room light when looking outside during the day.   Posted: Sun Oct 07, 2012 7:44 pm AirGunEric Site Admin Joined: 20 Jan 2007 Posts: 6908 Location: "Out There" I wonder if it affects the focus at all? The reduced light seems somewhat obvious- but wouldn't placing a swiss cheese barrier in front of the objective cause other issues- i.e. maybe ghosting or such? _________________ ` I'd say "I care." But I'd be lying. Canadian Airgun Supplier: http://www.scopesandammo.com/storefront   Posted: Mon Oct 08, 2012 3:00 pm Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND I have also heard reports of a fuzzy image and reduction of light level, which for what I require for early morning with the sun in your eyes, plus shooting into the shadow's is not really going to help. so I may give it a miss until I can try one for free. Al _________________   Posted: Mon Oct 08, 2012 3:25 pm rsterne Moderator Joined: 15 Jan 2008 Posts: 2998 Location: Coalmont, BC If you are focused out a long ways, any dimming should be minimal as the light rays are nearly parallel (and assuming the cell walls of the honeycomb are perfectly aligned with the scope axis).... As the target is closer, the image will tend to degarde a bit.... Another factor is "diffraction", which takes place parallel to and at 90* to every surface.... Those of you familiar with reflector telescopes will have seen four pointed "stars" in the eyepiece instead of just round dots, especially with brigher stars.... That is caused by the four vaned "spider" that supports the secondary mirror near the top of the tube.... Interestingly, if you have a three legged "spider", you get six spikes instead of four (remember, 0* and 90* to the surfaces).... A honeycomb has six surfaces, but on only three angles, causing six "spikes" around every object.... However, when you are looking at an extended object, it is composed of many (infinite?) light sources, and each one will have a diffraction pattern around it.... That could cause an additional "fuzziness" to the image.... Bob _________________ Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since! Airsonal: Too many to count!   Posted: Tue Oct 09, 2012 1:14 am toadmyster223 Senior Member Joined: 20 Mar 2012 Posts: 501 Location: Fayette Nam, PA Amazing answer Bob^ Took the words right out of my mouth, give or take :P   Posted: Tue Oct 09, 2012 4:25 am Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND Now why didn’t I think of that!!! Al _________________ Hawke HoneyComb Sunshade     Air Gun Home Forum Index » Optics You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT - 5 Hours   Page 1 of 1   All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First  Select a forum Main Forums----------------AirGunHome Q&AGeneral Air Gun Questions and TopicsPicture GalleryTarget Shooting: Casual, Fun and CompetitionHunting, Pest Control, Varminting People/Events/Airgun Issue Discussion----------------Introduce YourselfThe BS TopicClubs/Events/Regional/Political Airgun Issues Maintenance, Modification and Reviews----------------RiflesPistolsAntique, Collector and Novelty AirgunsBB GunsPellets/AmmoOpticsAccessoriesAirgun Smithing Buy, Sell or Trade Forums----------------For SaleWant to Buy   Note: If you are seeing "Please enter your username and password to log in." Your browser cookies have been reset or you need to register to access the topic in question. Use the 'Register' button near the top left of this page. Click Here for AirGunHome.com Main Page Powered by phpBB © 2001-2004 phpBB Group Partial Styling Supplied by Vjacheslav Trushkin Themes Database.