Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-08-2013, 06:45 PM   #1
Veteran Member




Join Date: Jan 2011
Location: Minahasa, North Celebes (Sulawesi)
Photos: Albums
Posts: 585
Spotting Scope or Mirror Lens?

I'm curious about what's better between using a spotting scope and a regular mirror lens to achieve long-distance photography. I know that there will be loss of image quality, but what's better or worse. Anyone with experience?

01-08-2013, 07:08 PM   #2
Pentaxian




Join Date: Oct 2011
Location: Savannah, GA
Posts: 5,002
QuoteOriginally posted by minahasa Quote
I'm curious about what's better between using a spotting scope and a regular mirror lens to achieve long-distance photography. I know that there will be loss of image quality, but what's better or worse. Anyone with experience?
I could be wrong, but I don't think too many people are using SLRs with spotting scopes. But "digiscoping" -- using a spotting scope in conjunction with a compact P&S type camera is becoming more and more popular with birders. The reasons are simple:

-- It works reasonably well when you are more concerned with just getting a shot of bird then a "print-worthy" shot, although remarkably good quality can be achieved. But then you're ending up spending $$$ on digiscope adapters, etc etc

-- Birders have spotting scopes anyway, and the range is much greater and at much lower cost than high-end telephoto lenses.
01-09-2013, 04:22 AM   #3
Site Supporter
Ex Finn.'s Avatar

Join Date: Nov 2007
Location: Southern Maryland.
Photos: Gallery | Albums
Posts: 6,296
QuoteOriginally posted by minahasa Quote
I'm curious about what's better between using a spotting scope and a regular mirror lens
Mirror lens can be cheaper and easier to handle, but suffers from not so good contrast. An ED spotting scope can have remarkable image quality with cost penalty.
I have only played with Pentax PF-80 ED, the problem with it was the fact that, in order to connect a D-SLR and achieve focus, you need to use the CA-35 adapter, making the focal length too long and causing serious loss of light.
Better alternative IMO would be a ED doublet or triplet telescope, using prime focus with T-adapter. For example:
ED80T CF Triplet Apochromatic Refractor Telescope | Orion Telescopes
01-09-2013, 05:53 AM   #4
Veteran Member




Join Date: Nov 2009
Location: Iowa
Photos: Albums
Posts: 2,269
I've gone through more than my share of mirror lenses before landing on a good one. If you're going to go with a mirror lens, there are only a couple I'd consider: Either the Tair 3M-5CA or Tamron. Anything else and you're likely to be disappointed.

01-09-2013, 07:43 AM   #5
New Member




Join Date: Apr 2012
Posts: 1
Why not use a Pentax Q with adapter to PK lenses? Only manual focus, but many of the pictures with e.g. DA*300 that I have seen looks very good.
Reply

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!
k-mount, mirror, pentax lens, scope, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Spotting scope questions mr tibbs Pentax SLR Lens Discussion 3 02-22-2011 03:56 PM
Using Pentax Spotting Scope as a Lens? Tamia Pentax SLR Lens Discussion 13 02-14-2011 01:17 PM
Connecting a k100d to spotting scope? Petthefish Photographic Technique 8 07-24-2007 02:24 AM



All times are GMT -7. The time now is 05:07 PM. | See also: NikonForums.com, CanonForums.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