#1  
Old 20-06-2013, 08:14 PM
allan gould's Avatar
allan gould
Registered User

allan gould is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 4,481
Olympus om-D e-m5

Has anyone used the above Olympus camera for astrophotography?
I'm interested to see how the 3.7 um pixels would perform with say a 900mm refractor and bulb mode.
Anyone with any experience?
Allan
Reply With Quote
  #2  
Old 20-06-2013, 10:07 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 15,409
Chris (omaroo) uses an OMD. Perhaps you can PM him.

One feature it has which is cool is it shows the long exposure building on the LCD screen. It also allows unlimited exposure time internally in the camera without requiring the stupid bulb setting and an intervalometer.

It is a micro 4/3rds sensor which is the same size as the KAF8300 but relatively small in digital camera sensor sizes. This means physically the sensor collects less light. It also means lenses have a 2X crop factor.

It won camera of the year by public vote and won narrowly over the Nikon D800 on DPreview so it is very popular and has happy owners generally speaking.

From what I read it has good low light performance.

Greg.
Reply With Quote
  #3  
Old 21-06-2013, 06:02 AM
sheeny's Avatar
sheeny (Al)
Spam Hunter

sheeny is offline
 
Join Date: Jun 2005
Location: Oberon NSW
Posts: 12,666
Sorry, haven't tried it. I've only used mine for startrails and nightscapes in the astro realm.

Al.
Reply With Quote
  #4  
Old 21-06-2013, 01:18 PM
CometGuy's Avatar
CometGuy
Registered User

CometGuy is offline
 
Join Date: Feb 2005
Location: Brisbane
Posts: 942
I have the Olympus OMD and its very nice for astrophotography.

The Pros:
- Excellent live view capability (In my 12" Dob, Individual stars could be just resolved in 47 Tuc with liveview)
- High sensitivity (similiar to Canon/Nikon).
- Very compact, but rugged
- Excellent in-body stabilisation (3 stops easily).
- True raw files - the raw files appear untampered.

The Cons:
- Can't do tethered control (apart from remote shutter, for bulb mode, etc)
- Relatively little software support

To be aware of (could be a pro or con).
- Smaller field of view as well as smaller pixels.
Reply With Quote
  #5  
Old 21-06-2013, 06:10 PM
allan gould's Avatar
allan gould
Registered User

allan gould is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 4,481
Thanks for that but had continued delving into the Internet and find that many nightscapes have been taken with it and it seems to do really well at that. I shall be trying some AP with it when the adapter arrives.
Omaroo (Chris) has been a great help and I thank him and others here for input.
Allan
Reply With Quote
  #6  
Old 22-06-2013, 12:26 PM
Garbz (Chris)
Registered User

Garbz is offline
 
Join Date: May 2012
Location: Brisbane
Posts: 639
Quote:
Originally Posted by gregbradley View Post
One feature it has which is cool is it shows the long exposure building on the LCD screen.
A cool feature it is... if your camera is powered from mains. This demolishes your battery life.
Reply With Quote
  #7  
Old 24-06-2013, 05:22 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 15,409
Quote:
Originally Posted by Garbz View Post
A cool feature it is... if your camera is powered from mains. This demolishes your battery life.
There you go. Didn't know that.

From my experience so far for astrophotography in mirrorless the best is Fuji X series. They are releasing an XM1 which is even smaller, lighter and cheaper but the same sensor. That will be a good deal. They seem to be going from strength to strength.

The earlier Sony Nex 5n was rated as very good. Have a look at Alex's nightscapes and dob shots with a modified one. They are superb.
Nex 6 is good as well. Both Fuji X series and Nex 5/6 will outperform any APSc Canon. Modern APSc Nikons, perhaps not. ISO 6400 is useable on both with a touch of noise reduction in summer.

Ultimately modern full frame is still the king. Canon 5D3, 6D, 1DX or Nikon D800/E, D600, D4 are way ahead.

Sony RX1 may be good too but you can't change the lens. Same with Fuji X100s. It has even better low light low noise performance than XE1.

Other brands - I don't know, but the above are the leaders in this field. OMD EM5 is also very good with the above a bit better (not much from what I read but no experience with the camera except it has a smaller sensor so physics starts to affect things here no matter how good the processor or sensor design).

There are rumours of a Sony Nex camera with a full frame sensor. Now that could be hot if it eventuates.

DSLRs days are numbered. Use a mirrorless for a while and then watch how you don't drag out your DSLR as much as you used to. All mirrorless have to do is bring autofocus up to DSLR standards. Its not there yet.
In the APSc world mirrorless are already better than DSLRs in almost every way except fast motion shots AF and perhaps price. Lens choice can be a tad limited as well depending on brand. But Fuji for example make lenses a cut above Canikon.

Leica ruled this realm for some time with their full frame M series etc. Once full frame mirrorless hit the shops DSLRs will take an even bigger loss of market share.

Greg.
Reply With Quote
  #8  
Old 24-06-2013, 05:33 PM
ZeroID's Avatar
ZeroID (Brent)
Lost in Space ....

ZeroID is offline
 
Join Date: May 2010
Location: Auckland, NZ
Posts: 4,950
I have the SONY SLT A77v which is 'mirrorless' although it works as a DSLR. It has an EVF screen (Electronic View Finder) which is excellent for getting exposure right as it responds to the changes in settings as you adjust. I wish it had a LiveView mode because it works well as a Astrocamera. No amp glow present either that I have found.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 07:59 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
SkyWatcher Australia
Advertisement
NexDome Observatories
Advertisement
Lunatico Astronomical
Advertisement
OzScopes Authorised Dealer
Advertisement
Meade Australia
Advertisement
Bintel
Advertisement
Celestron Australia
Advertisement
Astronomy and Electronics Centre
Advertisement