Forgot Password
Pentax Camera Forums Home
 

Show Printable Version Search this Thread
03-16-2009, 09:27 AM   #1
Senior Member
wilkin's Avatar

Join Date: Jan 2009
Location: Richmond 里士满 Va
Posts: 161
Feedback Score: 4 (100%)
[SOLD] Celestron C90 + extras

PentaxForums.com Marketplace Listing

Item for Sale
Celestron C90 1000mm + extras

Asking Price
280 obo USD shipped (within CONUS)

Item Description
comes with original case, Canon mount w/cap but can be replaced with a Pentax T-adapter, Celestron Star Diagonal .96, Celestron 16mm Kellner .96 fully coated Eyepiece, original lens cover. There is some dust inside but can probably be cleaned













click to enlarge

Are you the original owner of the item being sold?
No

Are you selling or trading this item?
Selling

Item Condition
Used
Mint

Item Location
Richmond Virginia

Shipping Charge
included

Shipping Services
USPS UPS

Shipping Destinations
United States

Accepted Payment Types
PayPal Check/Money Order

Additional Details
price is negotiable shipping is included

Please send me a private message if interested in the item!


Last edited by wilkin; 03-16-2009 at 12:35 PM. Reason: add
03-16-2009, 11:11 AM   #2
Senior Member
wilkin's Avatar

Join Date: Jan 2009
Location: Richmond 里士满 Va
Posts: 161
Feedback Score: 4 (100%)
Original Poster
quick bump
03-16-2009, 11:56 AM   #3
Senior Member
Sodbuster's Avatar

Join Date: Jan 2009
Location: SE Minnesota
Posts: 109
Feedback Score: 1 (100%)
I'm guessing that the C90 has a 90mm objective. What is the focal length in mm, such that would make sense to photographers? It is a better than average cat lens, isn't it?
03-16-2009, 12:35 PM   #4
Senior Member
wilkin's Avatar

Join Date: Jan 2009
Location: Richmond 里士满 Va
Posts: 161
Feedback Score: 4 (100%)
Original Poster
QuoteOriginally posted by Sodbuster Quote
I'm guessing that the C90 has a 90mm objective. What is the focal length in mm, such that would make sense to photographers? It is a better than average cat lens, isn't it?
1000mm focal length, not sure if its better or not, but you can get some extreme close ups


Last edited by wilkin; 03-16-2009 at 12:37 PM. Reason: fix
03-16-2009, 12:47 PM   #5
Pentaxian
Moderator Emeritus




Join Date: May 2007
Location: Edmonton Alberta, Canada
Posts: 10,648
Feedback Score: 117 (100%)
And with these you divide the focal length by the diameter to get the aperture. So this one's f11.11 (1000/90)
03-16-2009, 01:58 PM   #6
Senior Member
Sodbuster's Avatar

Join Date: Jan 2009
Location: SE Minnesota
Posts: 109
Feedback Score: 1 (100%)
Celestron makes telescopes. I would just guess that it is a better mirror lens than my Phoenix 500mm..

I don't -know- that.
03-16-2009, 02:22 PM   #7
Senior Member
wilkin's Avatar

Join Date: Jan 2009
Location: Richmond 里士满 Va
Posts: 161
Feedback Score: 4 (100%)
Original Poster
QuoteOriginally posted by Peter Zack Quote
And with these you divide the focal length by the diameter to get the aperture. So this one's f11.11 (1000/90)
ya its f/11

QuoteOriginally posted by Sodbuster Quote
Celestron makes telescopes. I would just guess that it is a better mirror lens than my Phoenix 500mm..

I don't -know- that.
couldn't tell you either, Ive never used a Phoenix 500mm
03-16-2009, 05:30 PM   #8
Senior Member
wilkin's Avatar

Join Date: Jan 2009
Location: Richmond 里士满 Va
Posts: 161
Feedback Score: 4 (100%)
Original Poster
quick bump

03-18-2009, 02:41 PM   #9
Senior Member
wilkin's Avatar

Join Date: Jan 2009
Location: Richmond 里士满 Va
Posts: 161
Feedback Score: 4 (100%)
Original Poster
2nd day bump
 

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
celestron, extras, item, price
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: K200D Plus extras Kevin B. Sold Items 2 02-21-2009 08:13 AM
celestron c5 spotter Phaser Pentax SLR Lens Discussion 10 08-05-2008 08:39 AM
For Sale - Sold: FS K100D with extras Bob Tuttle Sold Items 1 10-25-2007 10:37 AM
For Sale - Sold: FS: K100D with some extras Eastern Shore Charlie Sold Items 1 06-06-2007 12:04 PM



All times are GMT -7. The time now is 11:45 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top