Very nice mood for that shot, fotoi!
andicus Senior Member 307 posts Likes: 133 Joined Aug 2009 More info Post edited over 4 years ago by andicus. | Very nice mood for that shot, fotoi!
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Mar 28, 2017 22:32 | #4443 The one day old Moon this evening setting over the OC looking towards the South Bay. Used a Topcor 135mm f3.5 (from the 60s I believe).   DSC08697 by Steve Christle, on Flickr
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Apr 01, 2017 18:31 | #4444 Yesterday afternoon's moon, just a quick hand held shot.  HOSTED PHOTO please log in to view hosted photos in full size. Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC
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Apr 01, 2017 18:33 | #4445 Taken a few yrs back with my old 40D, Da Bigma and 1.4x tc...  HOSTED PHOTO please log in to view hosted photos in full size. RP, SL1, Canon 10-22 (modified for full frame) 35 2.0, 50 1.8, 28-135 IS, RF 24-105 IS STM, Tamron 70-200 2.8 VC & 100-400 VC
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Apr 01, 2017 18:35 | #4446 Taken a few yrs back with my old 40D, Da Bigma and 1.4x tc...  HOSTED PHOTO please log in to view hosted photos in full size. RP, SL1, Canon 10-22 (modified for full frame) 35 2.0, 50 1.8, 28-135 IS, RF 24-105 IS STM, Tamron 70-200 2.8 VC & 100-400 VC
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nardes Goldmember More info | Apr 02, 2017 00:35 | #4447 jgoetz4 wrote in post #18316979 Taken a few yrs back with my old 40D, Da Bigma and 1.4x tc... Hosted photo: posted by jgoetz4 in ./showthread.php?p=18316979&i=i27860141 forum: Astronomy & Celestial Nice capture of the 4 Galilean moons too!
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Inspeqtor saying the wrong thing at the wrong time  More info | Apr 02, 2017 05:38 | #4448 jgoetz4 wrote in post #18316979 Taken a few yrs back with my old 40D, Da Bigma and 1.4x tc... Hosted photo: posted by jgoetz4 in ./showthread.php?p=18316979&i=i27860141 forum: Astronomy & Celestial Nice shot! Charles
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TCampbell Senior Member More info Post edited over 3 years ago by TCampbell. | Apr 02, 2017 10:57 | #4449 I haven't posted to this thread in a long time because I don't often image the moon... but last night I had a mission. More on the "mission" in a moment... but first the moon.  HOSTED PHOTO please log in to view hosted photos in full size. So about the "mission". Here in the US, there will be a total solar eclipse stretching coast to coast on August 21, 2017. It will begin in Oregon and makes it way across the country and exit through South Carolina. The entire country will see at least a partial eclipse (a minimum of 50% of the Sun will be eclipsed no matter where you live in the continental 48 states (sorry Alaska & Hawaii)). But there's a path stretching from coast to coast which is approximately 60 miles wide and if you're in that path, you'll experience totality. The recognized expert on total solar eclipses as well as eclipse photography is a retired NASA physicist named Fred Espenak. Mr. Espenak goes by the nickname "Mr. Eclipse" and there's even a MrEclipse.com website. Though retired, he *still* does the eclipse predictions for NASA. If you know about the eclipse and have checked websites, news reports, etc. and they show the maps with the path of totality.... that's all Fred's data (you can thank Fred for knowing where to be on eclipse day -- or blame Fred if it's wrong (it won't be wrong... he's very good at this sort of thing.)) Fred was invited to be our keynote speaker for a huge astronomy outreach last September and as part of that event, the organizers and volunteers all do a lunch. Fred happened to select the seat next to me. During lunch, I happened to mention wanting to use my NP101is to image the event, but also wanting to use my 2x Powermate (TeleVue's name for a high-end focal length multiplier -- think of it as a 2x teleconverter... but designed for use on a telescope.) Fred warned me about using any focal length multipliers or teleconverters to shoot an eclipse. He mentioned that they very often create reflections, but these reflections are usually not noticed because we aren't shooting intensely bright subjects. But shoot the Sun... and suddenly you've got enough light for the reflection to be a problem. He described a test I should perform. 1) Wait fora night with a crescent moon. 2) Use the identical equipment you plan to use for the eclipse, to shoot the moon. 3) Compose the moon so it's at one side of the image (because the reflection will typically show up "opposite" the object and if it's centered you may not see it) 4) Deliberately over-expose the moon by 6-10 stops. So... the "mission" was to take advantage of the crescent moon to conduct the test according to Fred's guidance. This lets us use the moon to simulate the size and brightness of the Sun during the eclipse. Here is that test image.  HOSTED PHOTO please log in to view hosted photos in full size. Tragically it looks like the PowerMate does indeed create a reflection -- so I won't be using this for the eclipse.
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MalVeauX "Looks rough and well used"  More info Post edited over 3 years ago by MalVeauX. (3 edits in all) | Apr 02, 2017 11:01 | #4450 TCampbell wrote in post #18317479 Tragically it looks like the PowerMate does indeed create a reflection -- so I won't be using this for the eclipse. I don't think you will see that reflection while using a solar filter, even a basic white light filter. My evidence is perhaps anecdotal, but I shoot the sun with barlows & powermates in white light and in narrow band and I don't get reflections, on anything from a short 80mm to a big 120mm refractor, and 150mm SCT. If you over-expose enough, you will see all kinds of things in the imaging train, even with a white light filter. Everything will bloat under the over-saturation and get bigger too. But while using a solar filter, this will not be the case, and you shouldn't see a reflection that stark at all. You would have to really push exposure to see something like that come up. Even if it did, it won't be on the disc or in its shadow and likely completely out of your FOV and not recorded.
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Apr 02, 2017 11:46 | #4451 MalVeauX wrote in post #18317483 I don't think you will see that reflection while using a solar filter, even a basic white light filter. My evidence is perhaps anecdotal, but I shoot the sun with barlows & powermates in white light and in narrow band and I don't get reflections, on anything from a short 80mm to a big 120mm refractor, and 150mm SCT. If you over-expose enough, you will see all kinds of things in the imaging train, even with a white light filter. Everything will bloat under the over-saturation and get bigger too. But while using a solar filter, this will not be the case, and you shouldn't see a reflection that stark at all. You would have to really push exposure to see something like that come up. Even if it did, it won't be on the disc or in its shadow and likely completely out of your FOV and not recorded. This would only effect you shooting during totality with no filter, but then you won't have the exposed disc anyways causing the reflection. You're good to go.  Very best, The two images where it may be a problem are the 'diamond ring' effect (shot about 9 to 7 seconds before totality ... and again between 7-9 seconds after the end of totality) and the 'bailey's beads' effect (usually around 1.5 seconds before totality and again 1.5 seconds after totality ends.)
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Apr 02, 2017 14:34 | #4452 Thanks Dennis RP, SL1, Canon 10-22 (modified for full frame) 35 2.0, 50 1.8, 28-135 IS, RF 24-105 IS STM, Tamron 70-200 2.8 VC & 100-400 VC
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Apr 02, 2017 14:34 | #4453 Thank you. Da Bigma is the old Sigma 50-500mm lens RP, SL1, Canon 10-22 (modified for full frame) 35 2.0, 50 1.8, 28-135 IS, RF 24-105 IS STM, Tamron 70-200 2.8 VC & 100-400 VC
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Inspeqtor saying the wrong thing at the wrong time More info | Apr 02, 2017 14:46 | #4454 Well now, I have that same lens and still use it! Great lens! Charles
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Apr 03, 2017 01:41 | #4455 Not done a moon shot for a little while but a (rare) clear night prompted me to run out back and grab this...  HOSTED PHOTO please log in to view hosted photos in full size. <tuffty/>
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