Paul Corfield
Well-known member
At that distance everything would be in focus anyway due to the huge depth of field. At 525m the depth of field on the SW80ED will be around 230m (+/- 10m)
Paul.
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Astroscope + DSLR = Gallery! (5 Viewers)
- Thread starter cango
- Start date
At that distance everything would be in focus anyway due to the huge depth of field. At 525m the depth of field on the SW80ED will be around 230m (+/- 10m)
Paul.
alphan
Well-known member
Here is a shot of a foot long Dollarbird taken with 80ED + Cosina TN 2.4X from a distance of 100m. Humidity are in the range of 90-92% though, at noon. Un-cropped and no processing, jpeg mode. Just wouldn't get any better from that range in that condition.
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Paul Corfield
Well-known member
At 100m range the depth of field would be around 8m with the scope at 600mm. Add in the TN and that has probably halved to around 4m.
Paul.
Paul Corfield
Well-known member
goldenarrow
Well-known member
humans too
Very photogenic couple, very funny!
:-O
A sequence of BHG's - male + female. There's a story here somewhere
Very photogenic couple, very funny!
:-O
alphan
Well-known member
Paul Corfield
Well-known member
Pete, nice images from the SW 120 ST, last one treading through the weed especially.
Paul.
Paul.
alphan
Well-known member
I dont own any video cams Alp
I don't have too. We should seriously consider including that in our shopping list :-O.
A Brown Throated Sunbird @100% crop
80ED only
1/160s
ISO 800
Stork Bill Kingfisher
80ED no cropping
1/2000s
ISO 800
Javan Myna
80ED no cropping
1/50s
ISO 800
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Paul Corfield
Well-known member
When the sun is low in the sky and surrounded by haze it's fairly safe to photograph. Here for instance it was easy to focus through the viewfinder and there was so much haze that it wasn't too bright to look at.
This is a good opportunity to photograph sun spots without needed any special solar filter on the scope. This photo shows three sun spots, one at the top and two in the lower right. These were duplicated on every photo so I can be 100% sure it's not dust on the sensor.
ISO100 and 1/2500sec SW80ED
This is a good opportunity to photograph sun spots without needed any special solar filter on the scope. This photo shows three sun spots, one at the top and two in the lower right. These were duplicated on every photo so I can be 100% sure it's not dust on the sensor.
ISO100 and 1/2500sec SW80ED
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Here are some recent shots from a visit to RSPB Frampton marsh
Skywatcher ED80 Prime, Nikon D7000
Wheatear:
approx 50% crop
ISO 250
1/1600
Processed in ACR and Photo shop, noise reduction and sharpening - nothing heavy needed to 'soup it up', my usual workflow
Skylark
Approx 50% crop
ISO 400
1/1250
No processing other than resize
Skywatcher ED80 Prime, Nikon D7000
Wheatear:
approx 50% crop
ISO 250
1/1600
Processed in ACR and Photo shop, noise reduction and sharpening - nothing heavy needed to 'soup it up', my usual workflow
Skylark
Approx 50% crop
ISO 400
1/1250
No processing other than resize
Attachments
Last edited:
And finally, with a DOI HQ7 TN (approx X2.2)
Wheatear
ISO 500
1/800
Skylark
ISO 1250
1/1250
Again, minimal processing just resize.
With the ED80 as prime, there are no problems focus trapping, with the Kenko TC focus trap is possible with good light and contrast however with the DOI I have to manual focus - this shows on the skylark as I may have been a little out with my focus
Wheatear
ISO 500
1/800
Skylark
ISO 1250
1/1250
Again, minimal processing just resize.
With the ED80 as prime, there are no problems focus trapping, with the Kenko TC focus trap is possible with good light and contrast however with the DOI I have to manual focus - this shows on the skylark as I may have been a little out with my focus
