Join for FREE
It only takes a minute!
Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Digiscoping issues with 7D and ATX Scope

Thread Tools Rating: Thread Rating: 1 votes, 5.00 average.
Old Wednesday 13th November 2013, 00:35   #1
Registered User

Join Date: Jul 2013
Location: Washington, DC
Posts: 8
Digiscoping issues with 7D and ATX Scope

Hi All:

I've been digiscoping for over year with no issues using my old Canon Rebel with a Swarovski ATX 95mm spotting scope and APO adapter. I recently upgraded to a 7D and I cannot capture any good images so far..most are blurry. As with the Rebel, I've been shooting in Aperture Priority mode and adjusting the ISO where need be. Here's what I think is causing some issues:

1. The optical viewfinder in the 7D becomes grainy with a long focal length due to some film applied in the camera housing. This makes using the viewfinder with manual focus of the scope very difficult. I can't tell whether I'm getting a crisp image until I review the shots later. As a result, I've been the live mode LCD scree to review and focus, but this doesn't allow burst mode shooting..just one shot at a time. This stinks!

2. After reviewing my images the shutter speeds generated in aperture priority are far too slow in my opinion. Normally 1/200 and even lower. I'm not sure if this is because I'm in manual focus and the auto-focus isn't working which doesn't allow the camera to judge fast movement or bird flight to generate higher shutter.

Hopefully someone has gone through this process before or can offer some helpful tips....would be greatly appreciated.


JGalicki is offline  
Reply With Quote
Old Wednesday 13th November 2013, 15:59   #2
Mike Powell
Sandpiper's Avatar

Join Date: Nov 2002
Location: Nottingham, England
Posts: 3,695
Hi Josh,

I have digiscoped with a Canon 350D (Rebel?) and 7D on my Swarovski ATS80HD scope with 20-60x eyepiece. With both cameras I shot in Aperture Priority mode through a 50mm lens and DCA adaptor.

The 350D did not have Live View so I had to use the viewfinder. As you have mentioned the image is not all that bright which causes focusing problems in low light. However, I have taken some good shots with this setup, even birds in flight. The camera is lighter than the 7D and has a different mirror arrangement which, in my opinion, causes less mirror-slap than the 7D.

The 7D does benefit from Live View which does help with accurate manual focusing when using the magnifier. The extra weight of the camera compared to the 350D does cause balancing problems unless you use a long plate on the tripod head. From my experience the 7D suffers from vibration (mirror-slap) when the shutter is pressed. When shooting in Live View mode there is less vibration but the problem is still noticable. I resorted to using a wired remote to alleviate as much vibration as possible. The only way to counteract this vibration is to shoot at a faster shutter speed in continuous mode which gives you a chance of getting at least one shot that is sharp enough to use.

I assume you have checked the dioptre setting on your 7D. If it is not set correctly it makes it difficult to manually focus successfully. The ATX 95 gives you a brighter image for viewing and focusing than my 80HD which would be an advantage on dull days.

Sandpiper is offline  
Reply With Quote

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Repair Vortex Sandpiper or get another budget scope? + Maintenance issues scopee The Birdforum Digiscoping Forum 0 Wednesday 3rd July 2013 18:14
Best Scope for Digiscoping under $500 KatieJ Digiscoping cameras 4 Friday 30th April 2010 11:50
what is the best scope for digiscoping?? wrogers Photography using 'Astro' telescopes 33 Friday 27th November 2009 17:22
what digiscoping scope?? wrogers The Birdforum Digiscoping Forum 0 Tuesday 27th January 2009 12:08
Which digiscoping kit for a scope Andyt Swarovski 3 Monday 19th January 2009 11:40


Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.12528706 seconds with 11 queries
All times are GMT. The time now is 09:06.