BrianInnes
Well-known member
Several months, and still undecided on the P5100! :-C Might have to read the thread from the start again to help me decide on a digiscoping camera to replace my old Olympus C5000 :t:
Can anyone help please. I am new to Digiscoping, with all Nikon equipment..ED50A, zoom lens, Coolpix 5100, FSA 1&2 and FSB6 adapters.
I get the expected vignetting which can be overcome by zooming in a couple of stops. However, within a split second of turning the camera on, the circular vignette is distorted and made much worse in the bottom right corner (between 2 and 7 o'clock) by a dark shadow which can only be overcome by zooming in about 5 stops. Occasionally the dark shadow goes for a short while, but seems to be retriggered by the camera altering its focus?, aperture? or something else. All the bits fit together well and dont seem to move, so it seems to be something within the camera operation that causes the problem. The problem seems the same whether in Aperture priority or other modes.
Any suggestions please?
Hi
I am totally new to digiscoping and thought I'd show you my first result.
Do you have any suggestions what can be improved? I will buy a wire release next week.
The bird is a Wood Pigeon perched in a tree around 20 metres away. I reduced noise with NeatImage and sharpened one time.
Can anyone help please. I am new to Digiscoping, with all Nikon equipment..ED50A, zoom lens, Coolpix 5100, FSA 1&2 and FSB6 adapters.
I get the expected vignetting which can be overcome by zooming in a couple of stops. However, within a split second of turning the camera on, the circular vignette is distorted and made much worse in the bottom right corner (between 2 and 7 o'clock) by a dark shadow which can only be overcome by zooming in about 5 stops. Occasionally the dark shadow goes for a short while, but seems to be retriggered by the camera altering its focus?, aperture? or something else. All the bits fit together well and dont seem to move, so it seems to be something within the camera operation that causes the problem. The problem seems the same whether in Aperture priority or other modes.
Any suggestions please?
As suggested the cause is the camera not dead center and/or square on to the eyepiece. The shadowing will change when you half press the shutter and the camera lens stops down but it probably won't go away. It is possible the eyepiece is not locked to the scope properly so check that too.
Neil.
Thanks Neil and Sleeper for your replies.
I have double checked all the connections and all seem
o.k. Also, when I turn the camera on, the image is dead centre and equally bright all-round, rather suggesting that positioning is correct.. It is when I pan the camera and it (automatically) refocuses on another object that the shadow starts. Once there, it can only be removed by switching off and re-starting, when once again the image is perfect. Does this give further clues as to what is going on?
It would be a bit surprising and dissappointing if I just had to live with the problem, given that all the kit is designed to work together.
Any further thoughts would be very gratefully received.
Richard
Nice work. Now you will be addicted for life.
With birds in trees against the light I usually find that I have to open up the exposure about +0.7 or +1.0 . I ran your photo through CS2 to simulate the benefit of this. I hope you don't mind.
Let's see more soon , Neil.
Anybody know of a supplier in the UK who has the UR-E20 adapter in stock? I'm running out of retailers to phone.
http://www.srb-griturn.com/28mm-adaptor-sleeve-for-coolpix-50005100-1374-p.asp
They also do a P5000/ 5100 specific cable release adaptor
Thanks Neil and Sleeper for your replies.
I have double checked all the connections and all seem
o.k. Also, when I turn the camera on, the image is dead centre and equally bright all-round, rather suggesting that positioning is correct.. It is when I pan the camera and it (automatically) refocuses on another object that the shadow starts. Once there, it can only be removed by switching off and re-starting, when once again the image is perfect. Does this give further clues as to what is going on?
It would be a bit surprising and dissappointing if I just had to live with the problem, given that all the kit is designed to work together.
Any further thoughts would be very gratefully received.
Richard
Mr F, thanks for posting the photos of the adapter on the other thread. Only just seen as had a few days on Scillies. Looks like it does the same job as the UR-E20, but at least its available. According to Amazon they now have the UR back in stock but its £30. Thanks be I got mine for 20. I have found the SRB-Griturn flash socket cable release adapter for the P5100 a real boon for speed of setup. I'm still getting some blur Neil but it might be more wind on feathers. The attached (the bee-eater on St Agnes) was the P5100/Ur-E20, Kowa adapter on a 773 and the zoom eyepiece. Zoomed out on the camera and about 50x on the eyepiece. Shutter too slow?
Mike