Inconsistent light - PhotoCamel

aam1234 · 07-31-2008

While trying to do Focus Stacking I held everything the same except varying the focus area, yet some photos were lighter/darker than others. What could be the reason.

- Waited few seconds between shots to allow the head to be fully charged
- 2x500 Bowens were used, one is a medium SB the other is small

Any advice will be appreciated.

Jacco · 07-31-2008

Quote:

Originally Posted by aam1234

While trying to do Focus Stacking I held everything the same except varying the focus area, yet some photos were lighter/darker than others. What could be the reason.

Could be a shot-by-shot variance in your system's light output, or a variance in the shutter and/or aperture accuracy.

If you shoot RAW you can adjust the exposure/F-stop until your images match, before you blend/merge the layers/separate shots.

aam1234 · 07-31-2008

Thanks, Jacco.

I was shooting in manual.

aam1234 · 07-31-2008

A side question, if I may.

Forgot to turn off one of the strobes yesterday and now it's not working. Is this normal.

Thanks

Jacco · 07-31-2008

Quote:

Originally Posted by aam1234

Forgot to turn off one of the strobes yesterday and now it's not working. Is this normal.

Of course not. Whether your not turning it off yesterday is the cause remains to be seen. But to get it back up and working would be my primary concern. Not what caused it.
What kind of strobe is it? Brand? Model? Rating? How, and how long, have you used it? What exactly do you mean by "Forgot to turn off"? So was it in fully operational standby for 24 hours, or was it in some 'sleep mode'?
Not that I have a clue about studio strobes, but I'm sure some more background may illuminate the picture for those who do. As it were.
Oh, and is there still any warranty on that unit?

aam1234 · 08-01-2008

Thanks again, Jacco.

It is a Bowens 500 ws, and was not on a sleep mode. Oh and the third one went out too, so I'm left with only one now

You won't believe this....the warranty expired just yesterday! Amazing coincident

aam1234 · 08-01-2008

FWTW, one of the strobes started to work. Raised the output from lower than 2 (out of 6) to 3 and it started firing. This (set to low) might explain the inconsistent output also (a guess).

07-31-2008	#1 (permalink)
aam1234 Photocamel Master Posts: 5,516 CamelKarma: 479 Editing OK?: Ask first Gallery \| Blog	Inconsistent light While trying to do Focus Stacking I held everything the same except varying the focus area, yet some photos were lighter/darker than others. What could be the reason. - Waited few seconds between shots to allow the head to be fully charged - 2x500 Bowens were used, one is a medium SB the other is small Any advice will be appreciated. __________________ __________________ Members don't see this ad. Register your free account today and become a member on PhotoCamel - Your Friendly Photo Community, gaining access to posting privileges, contests, free plug-ins and other downloads, unlimited online storage for your photographs, reviews, free marketplace listings, and much more.
	__________________ It's all about light, my friend.

07-31-2008	#3 (permalink)
aam1234 Photocamel Master Posts: 5,516 CamelKarma: 479 Editing OK?: Ask first Gallery \| Blog	Re: Inconsistent light Thanks, Jacco. I was shooting in manual.
	__________________ It's all about light, my friend.

07-31-2008	#4 (permalink)
aam1234 Photocamel Master Posts: 5,516 CamelKarma: 479 Editing OK?: Ask first Gallery \| Blog	Re: Inconsistent light A side question, if I may. Forgot to turn off one of the strobes yesterday and now it's not working. Is this normal. Thanks
	__________________ It's all about light, my friend.

08-01-2008	#6 (permalink)
aam1234 Photocamel Master Posts: 5,516 CamelKarma: 479 Editing OK?: Ask first Gallery \| Blog	Re: Inconsistent light Thanks again, Jacco. It is a Bowens 500 ws, and was not on a sleep mode. Oh and the third one went out too, so I'm left with only one now You won't believe this....the warranty expired just yesterday! Amazing coincident
	__________________ It's all about light, my friend.

08-01-2008	#7 (permalink)
aam1234 Photocamel Master Posts: 5,516 CamelKarma: 479 Editing OK?: Ask first Gallery \| Blog	Re: Inconsistent light FWTW, one of the strobes started to work. Raised the output from lower than 2 (out of 6) to 3 and it started firing. This (set to low) might explain the inconsistent output also (a guess). __________________ __________________ Members don't see this ad. Register your free account today and become a member on PhotoCamel - Your Friendly Photo Community, gaining access to posting privileges, contests, free plug-ins and other downloads, unlimited online storage for your photographs, reviews, free marketplace listings, and much more.
	__________________ It's all about light, my friend.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Towards The Light	PhotoDim	Black-and-White	1	04-08-2008 08:27 AM
Let there be light	Rense	All Other Styles, Types	8	07-07-2007 10:42 AM
The right Light	Jim C	Macro and Close-up Photography	7	06-04-2007 06:50 AM
Inconsistent lighting with JTL 160 studio strobes...	Erick	Lighting and Technique	5	01-01-2007 01:59 PM
How many people can you light with one light?	Jess	Lighting and Technique	14	12-04-2006 11:36 PM