Transit of Mercury

Transit of Mercury November 11 2019

Detail from Transit of Mercury November 11 2019

The transit of Mercury on November 11, 2019 shot from San Francisco, CA with a Sony RX10 IV with an ND5.0 filter (and a better filter adapter than this one).

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(Published to the Fediverse as: Transit of Mercury #photo #sun #mercury #transit #solar #sanfrancisco Photo and zoomed in detail of the transit of Mercury shot from San Francisco, CA with a Sony RX10 IV. )

3D Printing a 72-58mm step down Camera Filter Adapter

Updated on Sunday, September 25, 2022

Thingiverse render of 72-58mm adapter

3D printed 72-58mm adapter in action on Sony RX10 IV

I have a 58mm ND5 filter that I bought to photograph the 2017 solar eclipse. It worked pretty well for that with my Sony RX100 V, but now I want to use it with an RX10 IV (which has the advantage of a 600mm equivalent zoom). The RX10 accepts 72mm filters and I want to try and photograph an ISS transit which is happening sooner than I can get hold of an adapter.

I figured someone must have done this before, but I can't find a file anywhere. It's a reasonably straightforward part - as the filter is smaller than the thread on the camera I just need a small cylinder which has a 72mm thread on the outside and 58mm on the inside. A step up adapter would be slightly more complicated to accommodate the larger filter size.

To build this I used OpenSCAD and this thread module. Open the thread module file in OpenSCAD and then you just need to subtract the inner thread from the outer thread like this:

This makes a simple 10mm tall adapter and you would just need to change the thread sizes to make it work for pretty much any combination of camera and filter (most filter sizes use a 0.75mm pitch as shown above). The vignetting is pretty extreme with the smaller filter and the size of the adapter. For this application I don't care, I'm only using the center of the image. If it's a problem for your application then it might be worth reducing the height of the adapter, at the expense of making it harder to detach from the camera.

Here is the adapter STL file on thingiverse.

After all that, I missed the transit by a couple of seconds. I thought the clock on my phone would be accurate enough but turns out it's 5 seconds off. So memo to self for next time - shoot over a longer window, or just take a video.

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(Published to the Fediverse as: 3D Printing a 72-58mm step down Camera Filter Adapter #etc #3dprint #solar #filter #thingiverse #iss How to 3D print a step down camera filter adapter with OpenSCAD code and the STL file for a specific 72mm to 58mm project (adapting a solar filter for a Sony RX10 IV camera). )

2017 Total Solar Eclipse from Madras, OR

Updated on Saturday, February 19, 2022

Total solar eclipse composite shot from Madras, Oregon for the 2017 eclipse.

Edited highlights from the 2017 total solar eclipse shot from Madras, Oregon.

360 spherical video of totality. This is best in a virtual reality headset.



The three timelapse videos edited into the version at the top of the page. The first one was shot on a GoPro. The second is from a Sony RX100V with an ND5 filter and the third is the Sony timelapse processed to keep the sun at the center of the frame.

(Previously)

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(Published to the Fediverse as: 2017 Total Solar Eclipse from Madras, OR #photo #timelapse #spherical #eclipse #solar #360 #video Timelapse video, composite photo and spherical 360 video of totality from the 2017 total solar eclipse in Madras, Oregon. )

Reviews and Links for June 2012

Updated on Friday, February 24, 2017

The Marriage Plot by Jeffrey Eugenides

3/5

A love triangle set in the turmoil of post-graduation. Well written but left me a little cold, I just didn't care for the characters or the sudden resolution.

 

Links

An important update from the International Earth Rotation Service http://t.co/n5VcLNH3 <- warning,="">

Seeing Beyond the Human Eye: Video of beautiful scientific and artistic photography http://t.co/aZsFEfh1

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Kate's #MEF151 looks hard! http://t.co/Qo4N4weY #fb

Pyura Chilensis, the living rock http://t.co/54moGgML

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Google's Nexus 7 tablet image leaks onto the Web http://t.co/nuLji4zz via @CNET - holy crap that's a big bezel #io12

Robot Hand beats you at Rock-Paper-Scissors every time. http://t.co/W4K1zAeq (Robot hand crushes rock, robot hand crushes scissors...)

Moon Landing http://t.co/oHFSCowO

Patent 'trolls cost $29bn a year' http://t.co/VQRiKFtb

Facebook Just Changed Your Email Without Asking http://t.co/z9QRi3qP

#Bernal now has a Solar Pump http://t.co/e40lcNLY

House of Lords reform: Nick Clegg's crazy plan is a pay day for has-beens and never-wozzers via @Telegraph http://t.co/kDjbqTFh

Future of ATA = more dishes. Not that expensive. What about it @NancyPelosi ? #SETIcon http://t.co/uobbZ065

Meeting moons at #SETIcon http://t.co/MXykt1QK

RT @erinbiba: http://t.co/Ahh0IhXq - a directory of ways for YOU to participate in space exploration. (Build a rover, get your name on a ...

Is Jupiter helpful to life on Earth? In some ways yes, in some ways no. #SETIcon http://t.co/pG1U3mf3

http://t.co/mZWx5FIr Turing Suicide in doubt?

Gaia corollary: http://t.co/9lPllPbT #SETIcon (re global organism)

Intelligent life: it's all about the unknown unknowns #SETIcon http://t.co/Goo7ngUq

Gorgeous start to the second full day of #SETIcon 2. http://t.co/f0bbwW4V

Was God required for the Big Bang panel rather unfairly stacked 100% against God #SETIcon http://t.co/Keg164Vo

How to find aliens: advice from NASA, SETI and the EMH. #SETIcon http://t.co/HAHZrbv6

ITHCWY: SETIcon 2: I'm at SETIcon 2 this weekend. It's a mix of science, sci-fi, religion and general speculation… http://t.co/jifR8Ang

http://t.co/FZo6GzxJ #todo #SETIcon @myEN Kepler archives opening in October

Success of Kepler Mission is staggering. Discovering water worlds, planets everywhere. #SETIcon http://t.co/4EytfDks

On the cusp of routine spaceflight - at #SETIcon http://t.co/iUU6GgEz

I'm reading Mission:Explore Food on @graphicly! http://t.co/z0iqfQKJ

Far-Fetched Scams Separate the Gullible from Everyone Else http://t.co/M8SyoAvH

Scout: get notified every time Congress proposes legislation with keywords you care about http://t.co/OlU04P45

Exoplanets http://t.co/CAu4C9v9 #fb

Falsehoods programmers believe about time - riff on the malleability of computer time http://t.co/sznLoFlH

JustAnswer Becomes http://t.co/U0xZtr5Z, Raises $25 Million Series A http://t.co/r5IQzmFZ via @techcrunch #PearldotcomLaunch

VatorNews - JustAnswer rebrands as Pearl, raises $25M http://t.co/MTveL1qB via @po_st #PearldotcomLaunch

http://t.co/U0xZtr5Z Has Professional Advice, for a Price http://t.co/RnyqID2G via @mashable #PearldotcomLaunch

Andy Kurtzig Raises $25M To Take Expert Services Online With http://t.co/U0xZtr5Z - http://t.co/PPFhu3q8 #PearldotcomLaunch

JustAnswer Becomes Pearl, Comes Out From Under the Radar http://t.co/5l3UTZ1M #PearldotcomLaunch

A Pearl (.com) Comes Out of http://t.co/LZa65dD3 http://t.co/tUhBuEhe via @HuffPostTech #PearldotcomLaunch

Customer Story - Dr. David Helps Nick Recover from Brain Hemorrhage: http://t.co/HK59IUw2 via @pearl.com #PearldotcomLaunch

RT @Pearldotcom: http://t.co/x1sGSaBc is now in beta, come check us out at http://t.co/ePbqZPiU! #PearldotcomLaunch

RT @MissionExplore: Mission:Explore Food – Video yourself doing one of the missions from the book and get a free copy http://t.co/TpkoBOaY

ITHCWY: Near-plurality of idiocy: "In the 30 years since Gallup started asking people whether they believe humans… http://t.co/9f5FoX9Z

BBC News - Alan Turing: why the tech world's hero should be a household name http://t.co/5eqmNyXY

ITHCWY: Petrol & Marks & Spencer: I recently got back from a trip back to the UK. Every time I go back these days… http://t.co/cV0N8tY7

+1 Error Code 451: an HTTP error for censorship http://t.co/OoA942o8

#todo @myEN Mobile-Friendly Pet Locator PetHub Closes $1.3 Million Seed Round http://t.co/DtkMMSoj

Bridge birthday thing... http://t.co/bBEc7TiC

Brrrr-earnal http://t.co/dD4FiXrv

Defensive Patent License: judo for patent-trolls http://t.co/h6Eq82kr

3 of 5 stars to The Marriage Plot by Jeffrey Eugenides http://t.co/aJwE7cIz

Check out this presentation : How to stop sucking and be awesome instead http://t.co/fqW1ZTG5 via @slideshare

Transit of Venus AND Sutro Tower Serendipitously Photographed from Bernal Hill http://t.co/bZAogCf8

Office has laid on EURO 2012 coverage. http://t.co/8dDStstW

Ridiculously nice walk with Rudy. http://t.co/u6E9H1Gg

ITHCWY: Playmobil http://t.co/bIuMirqh

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