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Old Saturday 29th September 2007, 07:50   #1
Neil
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Nikon P5100

The P5100 has just appeared in the shops here in Hong Kong so I trundled along to my favorite camera store to have a look at it. I bought it as it takes the same adapter as the P5000 and is basically the same camera with an updated sensor.
I just did a quick test in my apartment and the lens behaves very well with my Swarovski 30x and 45x. I use the DCA zoom on these fixed eyepieces and there is basically no vignetting from wide zoom to tele although I have to slide the adapter out a couple of mm at wide and 1 mm at tele. On the 20 - 60x zoom you need to zoom the camera lens to about half way to lose the vignetting at 20x and about the same at 60x. At 30x you lose it at around 2/3 rd zoom.
I'll post some photos tomorrow. Neil.
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Old Saturday 29th September 2007, 11:20   #2
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Neil,

Please comment on the time it takes to save photos. I was wondering if it is faster than the P5000.

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Old Saturday 29th September 2007, 18:49   #3
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Hi Neil

I am watching your opinion on this camera as I am not sure it is worth the extra over the P5000. I had a quick look at it and was surprised that they had not done anything with the slowish AF.

Really appreciate your views on this as I will be waiting for yours, and others, view on this.
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Old Sunday 30th September 2007, 04:40   #4
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These are the first tests from this mornings shoot using the P5100. I didn't compare it to the P5000 yet but did compare with the Canon A640.
My first impression is that AF time is similar to P5000 and camera slows down a bit more after about 3 frames as it processes the 12.1 megs.
Here is the original image straight from the camera with a cropped version and then an adjusted version of the crop. No noise that I could see at iso 64.
More tests following of various iso and against the A640. Neil

Nikon P5100 plus swarovski STS80HD scope and Sw 30x eyepiece and DCA adapter
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Old Sunday 30th September 2007, 11:10   #5
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Nice pic Neil. I was hoping that Nikon had improved the processing speed. Well I guess marketing won over common sense - easier to change the sensor than the logic and 12mpx makes nice adds to bring in first time users...
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Old Sunday 30th September 2007, 11:11   #6
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Here are two similar images from the Nikon P5100 and the Canon A640. The P5100 first. Neil

Nikon 5100 and Canon A640
plus Swarovski STS80HD scope and Swarovski 45x eyepiece and DCA adapter

Hong Kong,
China.
October 2007
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Old Sunday 30th September 2007, 12:11   #7
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the first picture is good,but the second picture,the bird is nearer,but is the best.but to be honest,there is not a great difference.nice pictures,thanks.

Last edited by jacksnipe : Sunday 30th September 2007 at 12:15. Reason: add some more words.
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Old Sunday 30th September 2007, 15:06   #8
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Different color renditions but similar quality IMO
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Old Monday 1st October 2007, 03:24   #9
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I ran a test of the P5100 lens from mid zoom to full zoom. The lens is equivalent to 35 - 120 mm , so on the Swarovski 45x eyepiece this equates to 45 x 120 = 5400 mm or 108x magnification. I used the Self-timer for this test. Have a look at the small print at the mid rear in the second adjusted (CS2 ) image. The distance is about 35 metres. Neil.

Nikon P5100 plus Swarovski STS80HD scope and Sw 45x eyepiece and DCA adapter

Lamma Island,
Hong Kong,
China.
October,2007
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Old Monday 1st October 2007, 04:32   #10
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There were 3 White Wagtails foraging around in the dirt this morning so this really tested the cropping ability of the 12.1 meg sensor. Taken from about 20 metres with the P5100 at the edge of the Green macro zone (10.1 mm/47 mm ).Neil.

Nikon P5100 plus Swarovski STS80HD scope and Sw 45x eyepiece and DCA adapter

Lamma Island,
Hong Kong,
China.
October 2007
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Old Monday 1st October 2007, 08:46   #11
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Nice series of trial shots there Neil, there seems to me very little difference beween the Nikon and Canon shots, I must say that the shots of the cans show excellent DOF. Do you mean a 45X eyepiece or a 45mm. Ernie
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Old Monday 1st October 2007, 09:18   #12
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Wow ! This is performance indeed... 108X is a 5400mm lens (let's say a 1687mm lens with a 2X converter and a 20D to make it smaller :-) ...) Congradulations, Master !

Neil, what tripod and ball head are you using ?
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Old Monday 1st October 2007, 10:28   #13
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Thanks Ernie. Swarovski have 3 fixed eyepieces in their current lineup - a 20x , 30x and 45x . There is a 77x too but it is a telescope 1.25 fitting. Neil.
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Old Tuesday 16th October 2007, 00:15   #14
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Hi Neil,
One question. Does your camera's lens vary in length as you zoom in/out ie minimum to maximum zoom. I think I want to buy one after seeing your impressive digiscope photographs. Thank you.
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Old Tuesday 16th October 2007, 01:34   #15
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Karim,
You'll be happy with the P5100. The lens extends and moves in and out with zooming but not much.
This is the adapter that gives you a 52 mm thread for you scope adapter. The Nikon one has a 28 mm thread.
http://cgi.ebay.com/Lens-Adapter-Flo...QQcmdZViewItem

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Old Tuesday 16th October 2007, 11:45   #16
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Neil,
I bought the camera this morning. And quickly test it this afternoon on a street lamp which about 50 meters away. I am using Kowa TSN-884 + Zoom eyepiece 20-60X. For this test my zoom is at 50X and no zooming at the camera.
Compare with my Fuji F40d, I am happy with with P5100, but anyhow please comment to inprove further.
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I shall look for the adapter and thank you very much for that.

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Old Tuesday 16th October 2007, 12:15   #17
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Karim,
Excellent test image at 50x on the zoom eyepiece.
Select Macro Mode and zoom the camera lens to the end of the Green zone (10.1 mm or 47 mm ). I shoot in this mode most of the time. I use Continuous and hold down the shutter for 3 frames at full resolution or 6 frames at 8 megs. I use Spot Metering and Spot Focus. For White or black birds I usually set Manual Exposure so as not to confuse the meter.
Good luck, Neil.
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Old Tuesday 16th October 2007, 12:31   #18
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I took some photos at iso 400 with the P5100 as I was using the zoom eyepiece at 60x and the light levels were low. Here is the original and the Noiseware/CS2 adjusted image.
Neil

Nikon P5100 plus Swarovski STS80HD scope and Sw zoom 20 -60x and DCA adapter

Hong Kong,
China.
October 2007
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Old Tuesday 16th October 2007, 13:15   #19
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Oh dear Neil, you wouldn't believe how depressed you are making me by posting all those amazingly sharp images. I would be delighted with that much detail at 10 feet! You've really got this digiscoping lark sorted out now and the P5100 does seem to be a very good camera. Keep up the good work.

Ron
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Old Tuesday 16th October 2007, 13:33   #20
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Ron,
Don't get depressed. I take a lot of images and only post the best one or ones to make a point. I take between 4 - 10 gigs of images a day and one day last week I took 18 gigs using 5 digicams and a digital videocam. I trash 90% of them. I still get a series of 20 images that are the wrong exposure or out of focus because I rushed it.
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Old Tuesday 16th October 2007, 14:42   #21
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Quote:
Originally Posted by Neil View Post
Karim,
Excellent test image at 50x on the zoom eyepiece.
Select Macro Mode and zoom the camera lens to the end of the Green zone (10.1 mm or 47 mm ). I shoot in this mode most of the time. I use Continuous and hold down the shutter for 3 frames at full resolution or 6 frames at 8 megs. I use Spot Metering and Spot Focus. For White or black birds I usually set Manual Exposure so as not to confuse the meter.
Good luck, Neil.
Thank very much, Neil for advices. I am getting myself familiar with the camera now and may be trying to get some bird photos tomorrow.

Thank you again. May God bless you. Happy birding.

Karim Madoya.
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Old Wednesday 17th October 2007, 12:55   #22
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P5100 Auto Focus

I've been quite impressed with the AF of the P5100 which is faster than the P5000. Just enough to get one frame of a Little Ringed Plover feeding around in the mud. This is a good test for an auto focus system. It's good up to about 2/3rds zoom , but after that you have to be more careful and find something with good contrast to focus on (eg legs,ground,branch ).
These were taken at 115 mm (24.5mm ) on the zoom (max is 123 mm ). It's hard to get the AF to work at full zoom in less than perfect light.
Neil.

Nikon P5100 plus Swarovski STS80HD scope and Sw 30x eyepiece and DCA adapter.

Hong Kong,
China.
October 2007
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Old Wednesday 17th October 2007, 14:59   #23
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Neil,

Very sharp pics. Congrads. How to you keep the rig stable ? What tripod and head are you using ?

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Old Wednesday 17th October 2007, 15:08   #24
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Jules,
For my mudflat digiscoping I use a small Slik tripond at it's lowest setting with the legs spread wide and jammed into the sand ( I sit on the sand for this type of digiscoping ). I have the Manfrotto 501 Video Head with the arm turned up so that I can hold the arm and the shutter with the same hand while focusing with the other.
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Old Thursday 18th October 2007, 00:35   #25
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Thanks for the info Neil.
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