Hello, I tried out my E420 for the first time on Tuesday and can see a lot of red banding across the picture. It looks very bad on RAW set at ISO1600 and still...
1420
Alec Kennedy
pan3dpan
Aug 1, 2008 11:36 pm
Morris, Difficult to comment much without knowing more details, but you should always shoot RAW for astro pics. Don't go above 800 ISO (generally). For star...
1421
John
j_minnerath
Aug 2, 2008 12:13 am
Hi Alec and Morris, There are a few threads on the subject of banding over at 4/3rds Photo. One mentions banding with the 510 and high ISO and under exposure. ...
1422
Morris Bagnall
bagnallsuk2004
Aug 2, 2008 2:29 am
I had to shoot JPEG's in the end because I only had my small card in and was running out of room! I will post my raws on my site tomorrow and link to it so you...
1423
Morris Bagnall
bagnallsuk2004
Aug 2, 2008 2:29 am
John, I will take a look. Thanks. ... Photo. ... Kennedy ... should ... (generally). ... something like ... or ... lot of ... photo's ... need ... also ... ...
1424
Alec Kennedy
pan3dpan
Aug 2, 2008 2:40 am
Morris, If you're thinking of using the E-420 for astro photos then the main thing to consider will be the lack of red response due to the very aggressive IR...
1425
John
j_minnerath
Aug 2, 2008 2:50 am
Alec, An astrograph is a telescope designed and configured for photography at the expense of visual use. Though some can provide acceptable use visually too. ...
1426
Morris Bagnall
bagnallsuk2004
Aug 2, 2008 4:02 am
I am building a Seymor Rosin Astrograph; an f/4 8" hyperbolic mirror with a 2.6" secondary and a two element corrector. The corrector housing will attach to a...
1427
John
j_minnerath
Aug 2, 2008 2:02 pm
The Rosin Astrograph was presented in ATT if you get that magazine. Just the article itself can be downloaded from here: ...
1428
Morris Bagnall
bagnallsuk2004
Aug 2, 2008 3:44 pm
Yeah I saw that, it is Mike who is doing the design work on the yahoo forum and Ed Jones is doing the lenses. Thanks for the pointer. I can't wait to finish my...
1429
John
j_minnerath
Aug 2, 2008 3:53 pm
... My retirement pension puts a severe crimp on getting new goodies I absolutely think I need to have :) -- In...
1430
olyinaz
Aug 4, 2008 6:36 am
Howdy all, I've managed two captures that I'm reasonably pleased with. Both taken in prime focus on a C100ED refractor, here are the links: ...
1432
Morris Bagnall
bagnallsuk2004
Aug 4, 2008 3:31 pm
Here are the links to the RAW's I shot (they are large files; do not attempt to open with dial-up): One DELETED Two DELETED Three...
1433
John
j_minnerath
Aug 4, 2008 4:37 pm
I'm stuck on dial up so I don't want to try and down load an ORF :) I've seen pictures of that before though. Are you registered with 4/3rds Photo? I was just...
1434
Alec Kennedy
pan3dpan
Aug 4, 2008 10:11 pm
Morris, I had a problem with banding with my E-500 about 18 months ago, in our summer. I attributed it to the "warm" evening temperatures, about 20C, and also...
1435
Morris Bagnall
bagnallsuk2004
Aug 4, 2008 10:47 pm
John, thanks for the reminder about the 4/3 gruop, I had forgotten to join. Alec, it was about 64f when I was shooting and the NR was off on some but not all...
1436
John
j_minnerath
Aug 5, 2008 2:15 pm
Morris, Last night I shot 20 different images with the E500 and a 150mm OM Zuiko. I tried all sorts of combinations of ISO, time, NR, etc. I never could get...
1437
Morris Bagnall
bagnallsuk2004
Aug 6, 2008 1:52 am
I was hoping you were going to say ".........and when I turned the doodah up to 3 the banding disappeared"! I need to take some more shots but it will have to...
1438
John
j_minnerath
Aug 6, 2008 12:40 pm
Sorry, no :) I actually thought I might find a setting that produced bands, but never found any. It would probably take some ferreting through reports of the...
1439
Alain OLIVIER
aldo6469
Aug 7, 2008 3:58 pm
Hello, I am new to the list and a newbie in astrophoto (I started in January) and would like to submit you some of my photos made with a E-510 (and an Orion 80...
I forgot M51: http://img381.imageshack.us/img381/2103/m51cversion31vx1.jpg -- http://www.alainolivier.com...
1442
dan_x@...
dan_ftuser
Aug 7, 2008 4:34 pm
Hi Alain! Very nice shots you did! Greets Dan...
1443
Alec Kennedy
pan3dpan
Aug 7, 2008 10:15 pm
Alain, Very impressive images. You seem to have everything under control there, tracking, focusing, processing. Are you using Live View for focusing ? Cheers, ...
1444
chris266927
Aug 8, 2008 6:13 pm
Nice images Alain ... i will be happy when I get shots like that! How were you guiding?...
1445
Alain OLIVIER
aldo6469
Aug 10, 2008 6:46 pm
Thank you Chris. The mount is an Atlas and I am using the GPUSB from Shoestring Astronomy with Equinox 6 on an iBook, and with a SPC900 on an Orion Short Tube...
1446
Alain OLIVIER
aldo6469
Aug 10, 2008 6:46 pm
Hello, Thank you very much for your kind comments. Yes I am using Live View and it is really great. I don't if I would enjoy astrophoto so much without it. ;-)...
1447
John
j_minnerath
Aug 10, 2008 7:25 pm
Hello Alain, Nice images. The Atlas is a good mount, I've thought about one several times for setting up another slightly heavier duty GEM, always wanted a...
1448
khor_ok
Aug 12, 2008 11:11 pm
Alain, Thanks for sharing; it's given me a clearer picture of what the E510/410 are capable of - I have E300 and E410 and joined this group to see if DSO...
1449
mopman0004
Aug 15, 2008 2:17 am
I posted a shot of of Perseid meteor (3:30 am 8-12-08 looking NE from eastern WA. E-410 on a fixed mount, 8 min exp,ISO 400, 28mm OM lens @ f/4). In folder...
