Photography Archives - Greg.Randall https://gregr.org/category/photography/ Mon, 08 Feb 2021 19:34:56 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 https://gregr.org/wp-content/uploads/2020/05/cropped-gr-1-32x32.png Photography Archives - Greg.Randall https://gregr.org/category/photography/ 32 32 Fuji Rensha Cardia https://gregr.org/fuji-rensha-cardia/ Tue, 08 Oct 2019 16:11:18 +0000 http://gregr.org/?p=169 I’ve been looking at weird cameras on Ebay for 15+ years and I’m always amazed there are cameras I’ve never seen or heard of. This camera will take 8 photos across two 35mm frames in quick secession. I assume it’s original purpose was for analyzing your running gait or golf swing. There are several settings […]

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I’ve been looking at weird cameras on Ebay for 15+ years and I’m always amazed there are cameras I’ve never seen or heard of.

Fuji Rensha Cardia, camera with 8 lenses

This camera will take 8 photos across two 35mm frames in quick secession. I assume it’s original purpose was for analyzing your running gait or golf swing. There are several settings for photos from left to right or right to left and how much time there is between the photos.

Camera top with japanese settings

It looks like my camera doesn’t work though. The camera looks nearly new, but the Ebay listing said that it was untested and sold as parts only. Which makes me suspicious that they did test it, and it didn’t work. That’s Ebay, but the camera was really cheap in any case.

I checked the battery voltage, and it seemed ok. I took the case off of the camera and nothing looked mechanically broken, shorting the power switch did not make the camera turn on. I’ll have to dig a bit deeper.

I haven’t take the shutter apart yet, but it looks like the whole camera is run off of a single 6 wire stepper motor. It looks like there’s a switch below and to the right of the stepper; I assume that gives the stepper some positional feedback on where the shutters are. I guess if the electronics are blown I could probably build something myself since it really only looks like I’d need a stepper driver, and a couple of switch inputs. I hope though that I can get it working without too much fiddling around.

Fuji Rensha Cardia disassembly / teardown:

  1. Open the back door
  2. Remove three screws from the left side film canister area
  3. Remove two screws from the right side film take up area
  4. Remove one screw on the bottom of the camera to the right
  5. On the top of the camera flip the film rewind handle open, and remove one screw
  6. Gently flex the camera case and slide it off
The only bit that seemed to fall out was a film canister holder piece; set it aside. When you reassemble the camera after putting the case back on you can slide the film canister holder piece through the film rewind handle hole.

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Nishika N8000 https://gregr.org/nishika-n8000/ Thu, 03 Oct 2019 21:57:49 +0000 http://gregr.org/?p=162 One of my buddies gave me two Nishika N8000 cameras. These are odd cameras with four plastic lenses that shoot four small portrait images spread across two 35mm frames. Each of the four images is taken from a slightly different position creating a little bit of parallax between the images. When the images are split […]

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One of my buddies gave me two Nishika N8000 cameras. These are odd cameras with four plastic lenses that shoot four small portrait images spread across two 35mm frames.

Sample of four photos scanned

Each of the four images is taken from a slightly different position creating a little bit of parallax between the images.

When the images are split apart and aligned you can create GIFs with some fun movement.

The camera has three aperture settings f/8, f/11, and f/19 and one shutter speed — 1/60th. I don’t really trust either of those numbers. At some point I’ll measure the shutter speed to make sure it’s not way off. I might also try and rig up something to see about the aperture, but that’s a lot harder.

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Milky Way over Penland https://gregr.org/milky-way-over-penland/ Thu, 12 Sep 2019 22:11:19 +0000 http://gregr.org/?p=88 Sarah and I went to Penland School of Craft a few weeks back. It’s in a lovely part of the county — it’s about an hour northeast from Asheville, NC. The moon was pretty full most of the time we were up there, but a few nights I shot Milky Way photos before the moon […]

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Sarah and I went to Penland School of Craft a few weeks back. It’s in a lovely part of the county — it’s about an hour northeast from Asheville, NC. The moon was pretty full most of the time we were up there, but a few nights I shot Milky Way photos before the moon rose.

In a digital photograph the noise in an image is randomly distributed, so if you take two noisy photos, and combine them then the total noise in the resultant image is lower.

Image comparing the low noise in stacked images to an unstacked noisy image.
Left is the median of 17 aligned images & Right is a single frame

I shot 17 images for the sky at 30 seconds with 3200iso and for the foreground, 4 shots at 30 seconds at 16000iso.

Creating an average image for the sky is hard because the earth is rotating making the Milky Way appear to move. I used Nebulosity to align the Milky Way frames.

removing image distortion animation
De-Fishbolwed

I did a similar noise removal for the foreground, but that’s much easier as it doesn’t move. The foreground and sky now exist in separate images. They need to be combined in Photoshop using a mask.

Finally the image needs to be un-distorted — I shot these photos with an 8mm fisheye which gives the world a weird fishbowl shape.

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UV Exposure Unit https://gregr.org/uv-exposure-unit/ Thu, 12 Sep 2019 01:04:33 +0000 http://gregr.org/?p=79 I got back from a Casein Printing workshop a few weeks ago, and I’m gearing up to make casein prints at home. I’ve bought the two chemical components potassium dichromate and ammonium caseinate. The last big thing to do is build an exposure unit. It looks like most home made exposure units use fluorescent tubes, […]

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attaching UV LED tape to a board

I got back from a Casein Printing workshop a few weeks ago, and I’m gearing up to make casein prints at home. I’ve bought the two chemical components potassium dichromate and ammonium caseinate. The last big thing to do is build an exposure unit.

complete UV LED exposure board

It looks like most home made exposure units use fluorescent tubes, but they’re kind of expensive and require holders and ballast. I found some UV LED Tape on Amazon which should work, and it’s low complexity to setup — cut the tape to length, apply to the board, and solder wires to the tape to complete the electrical connection. It took maybe 2 hours to apply the LED Tape and solder everything together

I’m not sure how tall the exposure unit box needs to be, to get good coverage and diffusion, so I’ll prop it up for testing and then build an appropriate box

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Burning Man 2018 https://gregr.org/burning-man-2018/ Wed, 11 Sep 2019 19:09:07 +0000 http://gregr.org/?p=73 I went to Burning Man in 2018. I don’t know if I’ll ever go back due to the cost and the complex logistics, but it was pretty amazing. Here are a few pictures from the burn. The color pictures are all shot with my Canon 80d and a Tamron 24-70 f/2.8. The black and white […]

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I went to Burning Man in 2018. I don’t know if I’ll ever go back due to the cost and the complex logistics, but it was pretty amazing.

Here are a few pictures from the burn. The color pictures are all shot with my Canon 80d and a Tamron 24-70 f/2.8. The black and white images are all shot with my Kiev 60 and an Arsat 80mm f/2.8; I think I shot all the photos on pushed Ultrafine Xtreme 400.

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