Olympus UK E-System User Group
Olympus UK E-System User Group

Join our unique resource for Olympus Four Thirds E-System DSLR and Pen and OM-D Micro Four Thirds photographers. Show your images via our free e-group photo gallery. Please read the e-group.uk.net forum terms and conditions before posting for the first time. Above all, welcome!


Go Back   Olympus UK E-System User Group > Cameras, lenses and system accessories > Lens focus

Lens focus The place to talk about your camera's glassware.

Reply
 
Thread Tools Display Modes
  #1  
Old 5th November 2017
Invicta's Avatar
Invicta Invicta is offline
Full member
 
Join Date: Nov 2007
Location: Third rock from the sun
Posts: 957
Thanks: 64
Thanked 209 Times in 106 Posts
Likes: 6
Liked 57 Times in 37 Posts
Can you manually stop down a lens?

Keen to find out if it is possible to manually stop down a micro four-thirds lens.

E.g. set exposure to manual 1/60th @ f/5.6. In time lapse you take hundreds of images and the slight variation in aperture contributes to flicker.

I would like to manually stop down to f/5.6 so the aperture does not open and close for each shot. Is this possible please?
Reply With Quote
  #2  
Old 5th November 2017
Graham_of_Rainham's Avatar
Graham_of_Rainham Graham_of_Rainham is offline
Administrator
 
Join Date: Nov 2007
Location: Rainham
Posts: 7,267
Thanks: 578
Thanked 862 Times in 657 Posts
Likes: 1,935
Liked 1,226 Times in 727 Posts
Re: Can you manually stop down a lens?

I don't think so. However the Panasonic LEICA DG SUMMILUX Lens H-X015E has a manual control, so that may provide fixed aperture.
__________________
Graham

We often repeat the mistakes we most enjoy...
Reply With Quote
The Following User Says Thank You to Graham_of_Rainham For This Useful Post:
Invicta (5th November 2017)
  #3  
Old 5th November 2017
Phill D's Avatar
Phill D Phill D is offline
Full member
 
Join Date: Apr 2011
Location: Derbyshire
Posts: 7,732
Thanks: 857
Thanked 1,144 Times in 1,069 Posts
Likes: 514
Liked 1,368 Times in 721 Posts
Re: Can you manually stop down a lens?

Or a cheaper option would be the 7.5mm Samyang. It's a cracking little manual lens.
Reply With Quote
The Following User Says Thank You to Phill D For This Useful Post:
Invicta (5th November 2017)
  #4  
Old 5th November 2017
Ricoh Ricoh is offline
Full member
 
Join Date: Apr 2014
Location: Lancashire
Posts: 4,710
Thanks: 507
Thanked 355 Times in 317 Posts
Likes: 607
Liked 1,386 Times in 838 Posts
Re: Can you manually stop down a lens?

Quote:
Originally Posted by Graham_of_Rainham View Post
I don't think so. However the Panasonic LEICA DG SUMMILUX Lens H-X015E has a manual control, so that may provide fixed aperture.
It does, but only the Panasonic u43 'reads' the lens aperture setting on the lens. With Olympus u43, aperture needs to be selected using one of the twiddly dials in A or M, the lens aperture setting is ignored.
__________________
Steve

on flickr
Reply With Quote
The Following User Says Thank You to Ricoh For This Useful Post:
Invicta (5th November 2017)
  #5  
Old 5th November 2017
Invicta's Avatar
Invicta Invicta is offline
Full member
 
Join Date: Nov 2007
Location: Third rock from the sun
Posts: 957
Thanks: 64
Thanked 209 Times in 106 Posts
Likes: 6
Liked 57 Times in 37 Posts
Re: Can you manually stop down a lens?

Thanks for the info, shame Oly cameras cannot read the aperture ring setting on the H-X015E.

I got all excited by the depth of field preview lock setting, but alas the aperture is still opened and closed when you take a photo.

If in manual exposure and manual focus I would hope that this could be implemented as a firmware update. I'll contact Oly and ask - you never know!
Reply With Quote
  #6  
Old 5th November 2017
Ricoh Ricoh is offline
Full member
 
Join Date: Apr 2014
Location: Lancashire
Posts: 4,710
Thanks: 507
Thanked 355 Times in 317 Posts
Likes: 607
Liked 1,386 Times in 838 Posts
Re: Can you manually stop down a lens?

I know someone who could sell you a GX7 if you wish. I know him really well, but my wife says she knows him better.
__________________
Steve

on flickr
Reply With Quote
  #7  
Old 5th November 2017
Graham_of_Rainham's Avatar
Graham_of_Rainham Graham_of_Rainham is offline
Administrator
 
Join Date: Nov 2007
Location: Rainham
Posts: 7,267
Thanks: 578
Thanked 862 Times in 657 Posts
Likes: 1,935
Liked 1,226 Times in 727 Posts
Lightbulb Re: Can you manually stop down a lens?

I have achieved very good results with the OM Zuiko 24mm f/2.8 and the 50mm f/1.4

Many say the 24mm is the best lens to use on MFT.

__________________
Graham

We often repeat the mistakes we most enjoy...
Reply With Quote
Reply

Thread Tools
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Stop Press StephenL Foto Fair 18 14th June 2014 03:16 PM
How to stop the rain??? Rocknroll59 The lounge 24 8th February 2014 12:41 PM
Stop following me!! andym Foto Fair 4 25th May 2013 03:46 PM
When you just have to stop! Susan Foto Fair 5 7th December 2008 08:32 AM
F Stop Value Garrie Lens focus 25 29th February 2008 12:13 PM


All times are GMT. The time now is 03:32 AM.


The Write Technology Ltd, 2007-2018, All rights reservedAd Management plugin by RedTyger