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SUNDAY Eclipse Pix (test)
Apr 7, 2024 18:13:01   #
User ID
 
Today Sunday the sun was partially eclipsed by various trees. Also the sky was slightly hazy and I was curious what effect that has.

My solar filter is a piece of black plexiglass, such as can be harvested from discarded consumer electronics.

Pix attached.

Deluxe custom filter adapter
Deluxe custom filter adapter...
(Download)

Lumix GX8 screen
Lumix GX8 screen...
(Download)

Sky haze has small effect
Sky haze has small effect...
(Download)

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Apr 7, 2024 19:39:33   #
MJPerini
 
Canon Put out an advisory reminding people that solar specific filters have a metallic component that Blocks IR & UV that cause most of the damage. They stress Do not use any kind if regular ND regardless of the darkness.
Not only that, they are cheap.
I know nothing about the properties of black plexiglass -- all I am saying is be really sure you are correct.
I have also read that some Welders glass has UV blocking, but my point is why take a chance, when the known alternative is inexpensive.

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Apr 7, 2024 19:55:25   #
wdross Loc: Castle Rock, Colorado
 
User ID wrote:
Today Sunday the sun was partially eclipsed by various trees. Also the sky was slightly hazy and I was curious what effect that has.

My solar filter is a piece of black plexiglass, such as can be harvested from discarded consumer electronics.

Pix attached.


Looks like it did OK. It should be good enough for partial shots. Post some of your chromesphere shots if you take any.

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Apr 7, 2024 20:39:13   #
wdross Loc: Castle Rock, Colorado
 
MJPerini wrote:
Canon Put out an advisory reminding people that solar specific filters have a metallic component that Blocks IR & UV that cause most of the damage. They stress Do not use any kind if regular ND regardless of the darkness.
Not only that, they are cheap.
I know nothing about the properties of black plexiglass -- all I am saying is be really sure you are correct.
I have also read that some Welders glass has UV blocking, but my point is why take a chance, when the known alternative is inexpensive.
Canon Put out an advisory reminding people that so... (show quote)


Welders glass is acceptable for visual viewing of the partial phases of the eclipse. Welding produces copious amounts of intensity light and UV rays. I have used welders glass for welding, solar viewing, and solar photography. It is safe as long as you use welders glass that is 16 to 19 stops. 16 stops is too bright and 19 stops is too dark in my opinion. I have used 18 stop welders glass for three eclipses with no problems.

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Apr 7, 2024 20:43:25   #
User ID
 
wdross wrote:
Looks like it did OK. It should be good enough for partial shots. Post some of your chromesphere shots if you take any.

There wont be any chromospere here at about 43N/74W. I have zero interest in recording a partial eclipse as theres no aesthetc quality to those. Its just an orange disc and a black disc playing tag. A child could easily draw exactly that same image in Corel Draw.

I was merely curious as to how scrap plastic stacked up compared to the "official" filters. Verdict: Due to haze, I cant speak to possible slight loss of sharpness from an 1/8" piece of plastic but otherwise no hey problemo. If you ever saw pix of any partial eclipses you have seen that perfect sharpness actually doesnt matter anywho cuz there is no fine detail or texture involved.

I know theres paranoia about unsanctioned filters. Acoarst there was no risk to my eyes and Ive attached a test frame showing that the sensor is unharmed.

FWIW, the camera has the usual IR filter in the sensor stack, and the lens is made with typical optical glasses, which are opaque to short wavelength UV. Nevertheless, my best advice to Hawgsters is to follow where ever your paranoia leads you. Im not a lawyer ...

Post solar test photo of blank wall out of focus
Post solar test photo of blank wall out of focus...
(Download)

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Apr 7, 2024 21:08:17   #
wdross Loc: Castle Rock, Colorado
 
User ID wrote:
There wont be any chromospere here at ~43N/74W. I have no interest in recording a partial eclipse as theres no aesthetc quality to those. Its just an orange disc and a black disc playing tag. A child could easily draw exactly that same image in Corel Draw.

I was merely curious as to how scrap plastic stacked up compared to the "official" filters. Verdict: Due to haze, I cant speak to possible slight loss of sharpness from an 1/8" piece of plastic but otherwise no hey problemo. If you ever saw pix of any partial eclipses you have seen that perfect sharpness actually doesnt matter anywho.

I know theres paranoia about unsanctioned filters. Acoarst there was no risk to my eyes and Ive attached a test frame showing that the sensor is unharmed.
There wont be any chromospere here at ~43N/74W. I ... (show quote)


I will be watching this one on TV. I am just packing camera equipment (smaller camera case; one body and two lenses) and getting ready to go to my granddaughter's wedding. There will be more for me to see. Just none in the USA until 2045. And like you said, after one's first total eclipse, anything short of another total eclipse on the centerline is not that exciting.

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Apr 7, 2024 21:39:11   #
User ID
 
wdross wrote:
I will be watching this one on TV. I am just packing camera equipment (smaller camera case; one body and two lenses) and getting ready to go to my granddaughter's wedding. There will be more for me to see. Just none in the USA until 2045. And like you said, after one's first total eclipse, anything short of another total eclipse on the centerline is not that exciting.

Blood moons are waaaay more aesthetic than partial solar eclipses. They are more common and a bit easier to shoot. OTOH, all I did for sundays test was attach the plastic, guess at the exposure, and shoot a few frames.

The shutter speed was 2X below hand holding protocal but this lens has OIS. IOW, shooting the sun with modern gear is nearly foolproof. Therefor, I expect that tuesday Hogsters will be posting uniformly identical successful pix !

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Apr 8, 2024 09:22:02   #
Rongnongno Loc: FL
 
User ID wrote:
Today Sunday the sun was partially eclipsed by various trees. Also the sky was slightly hazy and I was curious what effect that has.

My solar filter is a piece of black plexiglass, such as can be harvested from discarded consumer electronics.

Pix attached.


Remember where you post this?

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Apr 8, 2024 10:38:23   #
selmslie Loc: Fernandina Beach, FL, USA
 
Rongnongno wrote:
Remember where you post this?

It's actually in the right place.

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Apr 8, 2024 10:52:21   #
User ID
 
Rongnongno wrote:
Remember where you post this?

Mostly, I remember only what I specifically choose to remember. Dont much take notes.

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