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Author Topic: Hasselblad H series and Extra Mirror Delay  (Read 722 times)

maxshafiq

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Hasselblad H series and Extra Mirror Delay
« on: September 02, 2017, 07:00:36 PM »

Hi Forum Readers,

I am trying to understand the practical advantages of using the extra micro delay functionality on a H6D. The options are None, 25ms, 50ms, 100ms and 200ms.

Can anyone advise on the practical uses of this feature? There is also an option not to return the mirror in conjunction with the above.

Regards

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Joe Towner

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #1 on: September 02, 2017, 08:49:33 PM »

The added mirror delay lets the vibration die down before a shot.  I tend to work with 50 or 100ms and for me it helps.  If I'm not composing at the time, I'll use the Mirror Up feature that Hass does so well.
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G_Allen

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #2 on: September 02, 2017, 10:40:00 PM »

I tested it years ago with an H2, and 50ms worked best for me. My H5x came with 50ms as the default setting. Works great
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maxshafiq

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #3 on: September 03, 2017, 04:56:22 AM »

I tested it years ago with an H2, and 50ms worked best for me. My H5x came with 50ms as the default setting. Works great

Thanks Joe. I will I guess do what I should have done in the first place and experiment :-)
I'll also play around with the mirror up too see of I can squeeze any more precision into the shot.

Thx
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BAB

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #4 on: September 07, 2017, 06:11:02 PM »

Depending on the wind, tripod vibration, subject and what lens you have on the camera each variable will have an effect with such a large sensor. I currently use 100ms but I've found when doing bracketing even though I want to go as fast as possible if subject and wind permit I'll give about a 1/2 to 1sec delay. The best way to test is in studio use a longish lens to focus on a led in tack sharp focus surrounded by steel wool if possible then you can see the blur on either the light or the fine fibers.
Bear in mind the files are soft without some good sharpening after capture and the files also almost always lack contrast. I have been after Hasselblad to give a seismic sensor for just this reason.
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BobShaw

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #5 on: September 07, 2017, 09:12:58 PM »

If I'm not composing at the time, I'll use the Mirror Up feature that Hass does so well.
+1.
Put the mirror up and be done with it.
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NickT

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #6 on: September 08, 2017, 05:24:10 PM »

Tip of the day; double tap mirror up to raise the mirror and set the self timer at the same time.
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Joe Towner

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #7 on: September 09, 2017, 05:48:58 PM »

Tip of the day; double tap mirror up to raise the mirror and set the self timer at the same time.

It really works well - M.Up on the H is how I want it to work on every other body.
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Dustbak

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #8 on: September 10, 2017, 06:52:35 AM »

I have redirected the AE-L button to M-Up. This works very easy also when not working from a tripod. With the thumb you can focus with the true focus button, flip up the mirror directly with the button below (AE-L) and capture with the release button. ( you do have to take off the AF function from the release button ofcourse  ;)).
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HBIEVP

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #9 on: September 15, 2017, 03:51:13 PM »

Hi Forum Readers,

I am trying to understand the practical advantages of using the extra micro delay functionality on a H6D. The options are None, 25ms, 50ms, 100ms and 200ms.

Can anyone advise on the practical uses of this feature? There is also an option not to return the mirror in conjunction with the above.

Regards

Max,

As informed and advised, the mirror delay is a conscious option used to counter the adverse effects of your capturing environment or photographic application: overall vibration, wind force, mirror flap, hand-handling, capturing at slower shutter speeds, need to capture quietly, etc. If conducive, focus optically or in live view, lock-up the mirror-up and release remote to reduce vibration to a bare minimum and experience the sharpness  :).

Sincerely,

Eric Peterson
Field Sales Specialist
Hasselblad   
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Jim Kasson

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Re: Hasselblad H series and Extra Mirror Delay
« Reply #10 on: September 15, 2017, 04:04:31 PM »

Max,

As informed and advised, the mirror delay is a conscious option used to counter the adverse effects of your capturing environment or photographic application: overall vibration, wind force, mirror flap, hand-handling, capturing at slower shutter speeds, need to capture quietly, etc. If conducive, focus optically or in live view, lock-up the mirror-up and release remote to reduce vibration to a bare minimum and experience the sharpness  :).

Sincerely,

Eric Peterson
Field Sales Specialist
Hasselblad

I understand how the delay can help with mirror flap, but how can it help with, say, camera movement due to wind force?

Also, is there a measurable reduction in C or A weighted SPL when mirror delay is used? If so, how much?

Jim
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