Results 1 to 4 of 4
Like Tree1Likes
  • 1 Post By olddogg60

Thread: Light - What we can and can't see.

  1. #1
    olddogg60's Avatar
    olddogg60 is offline HYPER GIANT
    Points: 106,617, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!200+ Posts Achievement!Monthly Activity Achievement!
    Awards:
    Group Posting Award!
    Join Date
    Jun 2012
    Location
    Idaho
    Posts
    8,902
    Points
    106,617
    Level
    100
    Thanks
    1,629
    Thanked 2,560x 2,230 Posts
    Downloads
    0
    Uploads
    0

    Post Light - What we can and can't see.



    Granpa_Cobra likes this.
    Bill
    Celestron Nexstar 8I SE XLT, CG5-GT Mount, MiniMax 102, Celestron 102 GT, Telrad Reflex Sight (2), Celestron Skymaster 15 X 70, Canon Xsi/450D, DMK 21AF04.AS, DMK 41U02.AS, Starbound & CPRO-800LP Observing Chairs, Celestron X-Cel LX EP's: 5mm, 7mm, 9mm, 12mm, 18mm and 25mm, Celestron 32mm & 40mm Plossl, ES 8.8mm 82°, Orion Variable Polarizing Filter, 6.3 Focal Reducer, DIY 16AH Battery Pack (2)

  2. #2
    j.gardavsky's Avatar
    j.gardavsky is offline Super Moderator
    Points: 80,654, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 83.0%
    Achievements:
    Ghost Achievement! Averaging 5+ posts a day!200+ Posts Achievement!400+ Posts AchievementFirst 1000 Experience Points365 Days+ Registered Achievement!
    Join Date
    Feb 2011
    Location
    Germany
    Posts
    10,969
    Points
    80,654
    Level
    100
    Thanks
    9,312
    Thanked 6,526x 4,216 Posts
    Downloads
    0
    Uploads
    0

    Default Re: Light - What we can and can't see.

    Hello Bill,

    thanks for this highly explanatory tutorial on the human vision,

    JG
    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW asph); EPs:Baader Classic Orthos; Leica WW and Periplan; Tele Vue; Swarovski SW; Pentax XW; ZEISS W & Zeiss diascope B WW T*; Filters: Astrodon, Astronomik, Baader (CCD), TS; Astrophotography: AstroTrac; Leica R7, R8: Leica 2.8/100mm and 3.4/180mm APO lenses; Zeiss Sonnar 4/300 on Nikon F70;
    Astronomy Forum Rules and Terms of Service
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

  3. #3
    MG877's Avatar
    MG877 is offline SUPER GIANT
    Points: 53,485, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Join Date
    May 2012
    Location
    Canada
    Posts
    1,343
    Points
    53,485
    Level
    100
    Thanks
    521
    Thanked 499x 392 Posts
    Downloads
    0
    Uploads
    0

    Default Re: Light - What we can and can't see.

    Very interesting read thanks for posting

  4. #4
    BobDob's Avatar
    BobDob is offline Super Moderators
    Points: 52,564, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 10.0%
    Achievements:
    Got three Friends20+ Friends Achievement!First 1000 Experience Points5+ Referrals Achievement!100+ Threads Achievement!
    Join Date
    Mar 2009
    Location
    Port Angeles, Washington
    Posts
    7,087
    Points
    52,564
    Level
    100
    Thanks
    5,211
    Thanked 2,865x 1,916 Posts
    Downloads
    0
    Uploads
    0

    Default Re: Light - What we can and can't see.

    Old dead thread now closed...
    6 inch F/5 GEM mounted reflector

    The Forum Rules, or Terms of Service:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.


    >)))))*>

 

 

Similar Threads

  1. DIY light cylinder for taking flats, small, light, battery powered, more!
    By Flea77 in forum ATM DIY Telescope Making Forum
    Replies: 12
    Last Post: 03-24-2013, 06:14 AM
  2. First Light Canon Rebel T2i - Light Pollution, grrrr.
    By DMouse in forum Astronomy Digital Cameras Forum
    Replies: 6
    Last Post: 02-05-2011, 02:53 AM
  3. Replies: 3
    Last Post: 05-08-2010, 11:48 PM
  4. Replies: 14
    Last Post: 11-30-2007, 01:03 PM
  5. How to make a light-tight red-light sign box for star parties
    By canopus56 in forum Amateur Astronomy Forum
    Replies: 3
    Last Post: 06-05-2006, 07:08 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 11:12 PM.