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DSLR external monitor advice


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#1 PhotographingBlind

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Posted 09 May 2012 - 10:59 PM

Hi,

I am considering an external monitor for my D7000.
It is not especially for video, but more for stills.
I considered a external viewfinder, but i think that wil not solve to find the macro critters.

I have a difficulty to find the critters in the viewfinder.

Anyone who has experience withe the external monitors ? Some advice ?
Will taking pictures work evenwell with the external monitor as with a regular viewfinder (live view delay ?)

I have a hugyfot housing.
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#2 adamhanlon

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Posted 09 May 2012 - 11:02 PM

Hi,

Have a look here:

http://wetpixel.com/...hd-dp4-monitor/

I would chat to Hugyfot too. Space is pretty tight inside their housings, so it will be crucial to find out what fits....

Adam

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#3 PhotographingBlind

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Posted 09 May 2012 - 11:33 PM

Hi,

Have a look here:

http://wetpixel.com/...hd-dp4-monitor/

I would chat to Hugyfot too. Space is pretty tight inside their housings, so it will be crucial to find out what fits....

Adam


Thanks for the link Adam !
Its a nice article !
But what my bigest question is, if you use live view withe external monitor, the picture quality and autofocus is the same ?

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#4 Steve Douglas

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Posted 10 May 2012 - 11:31 AM

Read the review. VERY comprehensive. Since I am fairly new to DSLR shooting, but have already had some issues, this comes at a good time for me.
Steve
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#5 adamhanlon

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Posted 10 May 2012 - 12:58 PM

Hi again,

Picture quality is identical.

However AF performance is not as good. The D7000 uses phase detection and contrast detection AF systems. The former is quicker but needs some of the light to be diverted to its sensor. This can only take place when the camera's is down. In Live View mode, the mirror must be raised, and hence the camera relies on Contrast detection AF only.

Saying that, and I don't wish to seem unkind, but if you cannot see what you are trying to focus on via the viewfinder, then any AF is good!

There is a good article on the D7000's AF system here:

http://www.imaging-r...000LIVEVIEW.HTM

All the best

Adam

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#6 PhotographingBlind

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Posted 28 March 2013 - 04:04 AM

Are there more systems on the market that can be used ?

Anybody who uses this and can tell what he find of it ?

 

What do you need for macro and wide angle video with slr ?

I have an 5000 lumen light....


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#7 ChrigelKarrer

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Posted 28 March 2013 - 06:37 AM

PhotographingBlind:

Backscatter make a external screen with a hires sony monitor inside and a focus point function: http://www.backscatt...bs-003-aq.lasso

German Hugyfot distributor and is selling them in the Hugyfot configuration and they will know if the plug will fit between the camera and the housing.

Italian manufacturer EasyDive build a 16:9 external monitor considerable less expensive than the one above. http://www.easydive....nt_e.asp?ID=123

My cameraman is using the last version of it and it is the only piece of equipment he has working flawless and always (if the batteries are charged)

 

As far as i remember the HDMI plug is on the left side of the D7000 and there should be enough space for a angled plug.

 

One 5000 lumen video light with more than 100° will be barely enough for less than 3 ft under daylight conditions,

it is fine for night/cave dives and too bright for macro work.

 

Chris


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#8 the_dragon_no1

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Posted 28 March 2013 - 02:35 PM

While om topic. Do you need higher shutter when in live mode? Sendt fra Samsung Galaxy S2, via Tapatalk forum app.

#9 PhotographingBlind

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Posted 28 March 2013 - 03:17 PM

Thanks for the info !

What do you mean with th last paragraph ? 

That a 5000 lumen  80 degree flood will be not enough for WA ?

Two 5000 lumen lights enough ?

 

I maybe forgot to mention but i dive in dark waters, not clear blue water but green dark waters.

 

My light is also dimmable, so i can get it less strong for macro.

But i thought the more light in macro the better ?


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#10 ChrigelKarrer

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Posted 28 March 2013 - 05:43 PM

I used 1 4320 Mangrove light with my GoPro Hero2 approx. 20-22 Meters deep in this video: to try the lamp.

You will notice that the colors come back at about 30 centimeters in front of the lens and the mangrove was at full power and the illumination is from my point not enough power.

I believe that for a nice visual effect the colors should come back at at least 50 Centimeters to 1 Meter distance from the port. 
For professional underwater films the crew uses a incredible amount of lamps and reflectors to illuminate the scenes the right way.

5000 Lumen will do some centimeters more ant the 80° beam also some more centimeters more, but this video was recorded with 20 Meter viz.

Diving in dark, green waters will reduce the distance greatly and create backscatter.

Unfortunately the Lumen value depend on how tight or concentrated the beam of the lamp is.

5000 Lumen measured with a 18° lens will shine from Spain to Sardinia while the same lumen with a 100° diffuser will be reduced to much much less.

The correct and comparable value for lumen should state nnn Lumen at nnn° degree beam to make the published lumen values comparable.

 

Anyway, you have the light, so give it a try to see how it performs and as you dive in dark waters the lamp will be brighter due the darkness around.

I tried 2 Mangrove in a cavern and only one illuminated the whole 5 Meter diameter tunnel very nice bt i have no videos from that.

 

No, for macro you don't need a lot of light and much, much lesser than for wide angle because you are usually very near to the motiv,

so the light don't have to travel trough the water and being absorbed during this travel.

You need enough light to keep (usually) the iris closed (f/stops above f/20) to gain as much depth of field as you can and you probably use low iso and high shutter speeds

and this factors need light power, but trough the short distance 1000 lumen is already more than enough

 

Chris


Edited by ChrigelKarrer, 28 March 2013 - 05:48 PM.

Nikon D800 - Sigma 15mm - Nikon 105mm Micro VR - Hugyfot Housing - 3 Inon Z-240 strobes - 2x2 8'' ULCS arms

Canon G12 with Patima aluminium housing - Fuji E900 with Ikelite housing
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