Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Read More.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Photo Sharing & Visual Enjoyment Nature & Landscapes
Thread started 21 Nov 2009 (Saturday) 12:47
Prev/next
sponsored links
(this ad will go away when you log in as registered member)

Post your 9 or 10 stop ND photos

 
pwm2
"Sorry for being a noob"
pwm2's Avatar
8,626 posts
Joined May 2007
Sweden
Nov 26, 2009 06:25 |  #31

fortisi876 wrote in post #9063974external link
Here's mine, I don't have many nor do I think I'm using it correctly. Am I the only person who seems to get serious vignetting?

The ND filter doesn't have an infinitely thin layer that absorbs the light. So when a flat filter is used with an UWA and the light moves at an angle to the filter for the corners of the image, the light ray will move a longer distance through the absorption layer resulting in extra stops of light loss.


5DMk2 + BG-E6 | 40D + BG-E2N | 350D + BG-E3 + RC-1 | Elan 7E | Minolta Dimage 7U | (Gear thread)
10-22 | 16-35/2.8 L II | 20-35 | 24-105 L IS | 28-135 IS | 40/2.8 | 50/1.8 II | 70-200/2.8 L IS | 100/2.8 L IS | 100-400 L IS | Sigma 18-200DC
Speedlite 420EZ | Speedlite 580EX | EF 1.4x II | EF 2x II

LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
fortisi876
Senior Member
493 posts
Joined Dec 2006
NNJ
Nov 26, 2009 10:58 |  #32

Thank you for that explanation, is there a solution/work around or limit as to what works well, less the vignetting?


Also, Im glad to see other complaining about the various color casts, that's the other issue Im getting with this filter. Those of you sharing those beautiful images w/out the cast, were they out of camera or were they corrected in PP'ing?




LOG IN TO REPLY
moacur
Senior Member
moacur's Avatar
414 posts
Joined Jun 2008
Nov 26, 2009 12:04 as a reply to fortisi876's post |  #33

HOYA ND 400 (9-stops)

Tiffen 0.6 Grad ND (2-stops)

CPL

2 Minute exposure

IMAGE: http://farm3.static.flickr.com/2574/4129305999_1b233d8a41.jpg

_______________
40D & 50D- Canon 50mm 1.8 II- Sigma 10-20mm- Canon 17-40L- Canon 70-200 F/4L IS

Flickr- http://www.flickr.com/​photos/21202229@N08/external link

LOG IN TO REPLY
John ­ Hudson
Goldmember
1,154 posts
Joined Dec 2006
Hartlepool
Nov 26, 2009 12:48 |  #34

I have the B&W 10 stop and 20 stop filters and I've seen the magenta colour cast in a lot of images.

I think B&W advise that the filter does cast. Someone also proposed to me that with the extended exposure times, a greater proportion of infrared light is hitting the sensor and this could be responsible for the cast (and also some softness). I'm not technically proficient enough to understand if this is correct or not, perhaps someone who is could clarify it.

Does anyone know a good method for removing the cast. I've struggled with quite a few shots, changing WB and channel mixer. But I usually end up with something more neutral, but clearly not correct.

John




LOG IN TO REPLY
CameraBuff
THREAD ­ STARTER
Goldmember
CameraBuff's Avatar
Joined Mar 2008
Illinois
Nov 27, 2009 11:35 as a reply to John Hudson's post |  #35

I found this in the B + W Filter handbook B+W Neutral Density Filter ¡06
This B+W Neutral Density Filter reduces the light by six f-stops. With this filter and without changing the f-stop, a shutter speed of ¡/60 s is changed to a full second, thus requiring the use of a tripod. Flowing water is rendered as flowing in the photo, and people moving in streets are dissolved in unsharpness or become invisible. Because of its higher transmission in the red beyond 660 nm, this filter brings a slightly warm tone to color photographs. If this effect is undesirable,
a B+W UV-/IR-Blocking Filter 486 in front of the neutral density filter (not behind it!) remedies that situation. The filter factor is 64x.
B+W Neutral Density Filter ¡¡0
With a light intensity reduction of ten f-stops, this B+W Neutral Density Filter has a slightly stronger warm tone than the ND ¡06. Its principal field of application
is the observation and documentation of industrial processes with extreme brightness, such as steel furnaces, incinerators, glowing filaments in halogen- and other bulbs. The filter factor is ¡000x.


Sony A7r, Sony 16-35 f4, Canon 1d3, Canon 70-200 f4L, Sigma 150-600 contemporary, G1X, Lee filter holder and gnd's, Singh-Ray reverse gnd
Flickr (external link)

LOG IN TO REPLY
John ­ Hudson
Goldmember
1,154 posts
Joined Dec 2006
Hartlepool
Nov 27, 2009 13:27 |  #36

CameraBuff wrote in post #9091399external link
I found this in the B + W Filter handbook B+W Neutral Density Filter ¡06
This B+W Neutral Density Filter reduces the light by six f-stops. With this filter and without changing the f-stop, a shutter speed of ¡/60 s is changed to a full second, thus requiring the use of a tripod. Flowing water is rendered as flowing in the photo, and people moving in streets are dissolved in unsharpness or become invisible. Because of its higher transmission in the red beyond 660 nm, this filter brings a slightly warm tone to color photographs. If this effect is undesirable,
a B+W UV-/IR-Blocking Filter 486 in front of the neutral density filter (not behind it!) remedies that situation. The filter factor is 64x.
B+W Neutral Density Filter ¡¡0
With a light intensity reduction of ten f-stops, this B+W Neutral Density Filter has a slightly stronger warm tone than the ND ¡06. Its principal field of application
is the observation and documentation of industrial processes with extreme brightness, such as steel furnaces, incinerators, glowing filaments in halogen- and other bulbs. The filter factor is ¡000x.

Thanks for the information. I'll have to have a look around for a 486 filter. I shudder to think how much a 77mm IR filter is going to cost.

John.




LOG IN TO REPLY
Picture ­ North ­ Carolina
Gaaaaa! DOH!! Oops!
8,992 posts
Joined Apr 2006
North Carolina
Nov 27, 2009 16:40 |  #37

CameraBuff wrote in post #9091399external link
I found this in the B + W Filter handbook B+W Neutral Density Filter ¡06
This B+W Neutral Density Filter reduces the light by six f-stops. With this filter and without changing the f-stop, a shutter speed of ¡/60 s is changed to a full second, thus requiring the use of a tripod. Flowing water is rendered as flowing in the photo, and people moving in streets are dissolved in unsharpness or become invisible. Because of its higher transmission in the red beyond 660 nm, this filter brings a slightly warm tone to color photographs. If this effect is undesirable,
a B+W UV-/IR-Blocking Filter 486 in front of the neutral density filter (not behind it!) remedies that situation. The filter factor is 64x.
B+W Neutral Density Filter ¡¡0
With a light intensity reduction of ten f-stops, this B+W Neutral Density Filter has a slightly stronger warm tone than the ND ¡06. Its principal field of application
is the observation and documentation of industrial processes with extreme brightness, such as steel furnaces, incinerators, glowing filaments in halogen- and other bulbs. The filter factor is ¡000x.

Interesting. Thanks. What with that warning about IR blocking, I'm now wondering how the filter would behave on a IR converted camera. Maybe boil the sensor and dissolve it? :) ;)


Website (external link) |

LOG IN TO REPLY
argyle
Cream of the Crop
argyle's Avatar
8,187 posts
Joined Apr 2007
DFW, Texas
Nov 27, 2009 18:41 |  #38

John Hudson wrote in post #9091939external link
Thanks for the information. I'll have to have a look around for a 486 filter. I shudder to think how much a 77mm IR filter is going to cost.

John.

Try setting a custom white balance or removing the cast in post with a color balance adjustment. I wouldn't slap another expensive filter in front of the 10-stop. Using the 110 and 486, plus a polarizer if you were inclined to use one at the same time, would make for quite the filter sandwich and would be too much of a PITA. Seems like the Singh-Ray Vari-N-Duo would be the better option:

B+W Kaesemann CPL: $170
B+W 486 filter: $180
B+W 110: $100

Adds up to $450 (B&H prices for 77mm filters). The Vari-N-Duo, with a mated warming polarizer, is $390; the Vari-ND (no polarizer) is $340 but you only get 8-stops of reduction due to the lack of polarizer. As I posted elsewhere, I don't see any type of colorcast whatsoever using the Vari-N-Duo at full strength and you don't have to concoct a cumbersome filter sandwich. Just an opinion...


"Fat, drunk and stupid is no way to go through life, son". - Dean Wormer

GEAR LIST

LOG IN TO REPLY
moacur
Senior Member
moacur's Avatar
414 posts
Joined Jun 2008
Nov 28, 2009 01:40 as a reply to argyle's post |  #39

Here's another of mine... from this morning...

Hoya ND400 (9-stops)

With CPL...(2-stops?)

and Tiffen 0.6 Grad ND(2-stops)

F/22

46 seconds

No color casts from mine and I stack em :p

Camera white balance does make a huge difference on color casts.. Once I figured out what white balances work with what filters it made a huge difference. Not that this is great.. but..

IMAGE: http://farm3.static.flickr.com/2734/4139992066_67eda639cd_b.jpg

_______________
40D & 50D- Canon 50mm 1.8 II- Sigma 10-20mm- Canon 17-40L- Canon 70-200 F/4L IS

Flickr- http://www.flickr.com/​photos/21202229@N08/external link

LOG IN TO REPLY
Tareq
"I am very lazy, a normal consumer"
Tareq's Avatar
17,693 posts
Gallery: 2 photos
Joined Jan 2006
Ajman - UAE
Nov 28, 2009 02:22 |  #40

I prefer to deal with WB later, even i can use the custom WB when using those 9-10 ND filters, but i really like those color casts, so you prefer natural color? i did once with natural or better WB, imagine, i changed it and added a color cast to it for more drama or interesting.


Galleries:
http://hamrani.deviant​art.com/gallery/external link
Gear List
Facebookexternal link

LOG IN TO REPLY
jdizzle
Darth Noink
jdizzle's Avatar
69,419 posts
Joined Aug 2006
Harvesting Nano crystals
Nov 28, 2009 03:23 |  #41

In the real world,the magenta cast is really unnatural and unacceptable. I can see how it annoys other photogs when they can't even correct the WB.




LOG IN TO REPLY
Tareq
"I am very lazy, a normal consumer"
Tareq's Avatar
17,693 posts
Gallery: 2 photos
Joined Jan 2006
Ajman - UAE
Nov 28, 2009 03:59 |  #42

jdizzle wrote in post #9094955external link
In the real world,the magenta cast is really unnatural and unacceptable. I can see how it annoys other photogs when they can't even correct the WB.

Yes i know, but Magenta is not what i am talking about, i am talking about another color cast, like red or orange or even blue if i want to add, but ofcourse when i see magenta it is not difficult to remove that color cast by pp.


Galleries:
http://hamrani.deviant​art.com/gallery/external link
Gear List
Facebookexternal link

LOG IN TO REPLY
John ­ Hudson
Goldmember
1,154 posts
Joined Dec 2006
Hartlepool
Nov 28, 2009 04:56 |  #43

Does anyone feel like posting their technique for generating a custom WB when using this filter.

I tried once with a grey card, and having to wait extra minutes for a custom WB shot was a bit of a pain, also the results were not good (but this is probably down to poor technique on my part).

Does anyone have a shortcut way to do it?

John.




LOG IN TO REPLY
//Cory ­ Varcoe
Member
//Cory Varcoe's Avatar
203 posts
Joined Sep 2009
Deep South of Kiwiland
Dec 04, 2009 14:02 as a reply to John Hudson's post |  #44

Just shot RAW then you don't need to worry about WB


w w w . c o r y v a r c o e . c o . n zexternal link
Flickrexternal link
Facebookexternal link

LOG IN TO REPLY
John ­ Hudson
Goldmember
1,154 posts
Joined Dec 2006
Hartlepool
Dec 04, 2009 14:08 |  #45

WB alone is not the answer, the cast is not uniform. Principally I suppose it's red channel, but it is variable.




LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)

1,950,477 views & 5722 likes for this thread
Post your 9 or 10 stop ND photos
FORUMS Photo Sharing & Visual Enjoyment Nature & Landscapes


Not a member yet? Click here to register to the forums.
Registered members get all the features: search, following threads, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, settings, view hosted photos, own reviews and more...


AAA

Send feedback to staff    •   Jump to forum...    •   Rules    •   Index    •   New posts    •   RTAT    •   'Best of'    •   Gallery    •   Gear    •   Reviews    •   Polls

COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Privacy policy and cookie usage info.

POWERED BY AMASS 1.4version 1.4
made in Finland
by Pekka Saarinen
for photography-on-the.net
Spent 0.00206 for 4 database queries.
PAGE COMPLETED IN 0.06s
Latest registered member is skylairyip
735 guests, 310 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017