I will start to slowly review my gear (those camera, lenses, accessories) slowly here to share some experience ..
some may not be mine but belong to my gang or
Lee Photo , thanks Lee to allow me to test or special order some of the accessories so far and I managed to compare, test or know the quality of my purchase before I really own it ....
today I will start with one of my important Landscape accessories, ND filter ... but I refer to ~10stops filter ....
I own bot
Schneider ND110 & Lee filter big stopper so I will show some samples here... sorry for not able to rent a nd400 (HOYA) to test together ....
Schneider nd1000x
- own this ~2 year ago
- screw in
- same as other 10 stops filter total dark
Lee Filter - Big Stopper
- just got this with special order .. world wide no stock ???? for months
- square so can use with my standard Lee filter bracket or Cokin Z series holder
- same as other 10 stops filter total dark
as mentioned above, total dark .. so how to use this ????
1. custom functions to 1/2 stops ass appose to 1/3 as it comes on default
2. without the ND filter, set to MF
3. focus and read the exposure time (remember it with aperture)
if screw in type
4. if use screw type, remove UV filter and screw in nd filter
5. if GND need to be use put on filter holder and put in GND (not easy to handle this as you not really know where to position yours' GND
if square type
6. position yours' GND
7. slot in the Big Stopper (this is where I prefer to use my Big Stopper now !).. it is so easy to use together with other filters
8. from the exposure reading above, use below method to calculate the right exposure
1/4000 1/2000 1/1000 1/500 1/250 1/125 1/60 1/30 1/15 1/8 1/4 1/2 1(second) 2s 4s 8s 15s 30s 1(minute) 2min 4min 8min 16min 30min 1hour 2h 4h 8h
if you have exp
15s at F8 , ISO1600
why I use high ISO
- easy to get exposure reading even with 10 stops
- for ISO1600, and I know from ISO1600 -> ISO100, I going to brighten in 4 stops
if with 10 stops filter the reading is 15s @ISO1600
- so while I use ISO100, I need 4 stops brighter
- then I need 4 minutes exposures to get it right @ISO100
so is this easier ? just make a table print it and bring it with u any where :D
or if you purchase Big Stopper , the table will be included in the package ..
9. if ~30s then bulb require to make the right exposure
10. please take note while shooting dawn and dusk ... light change very fast .... you may manual compensate +-1/3 stops base on the time you shoot and light
after above how I use the nd filter, let's look at the filter samples
1. all above shoot very close timing with tripod, AWB, same ISO and sam aperture... same raw--->jpeg setting
- without any filter
- no correction of WB or color cast
2.with
Schneider nd1000x
- the magenta cast is bad for me
3. with Lee Filter Big Stopper
- the blue cast look bad to me too
so both give a bad cast to me .. so I have to shoot in raw (I always shoot raw some how), and correct the WB and color cast simply use the camera raw WB tool (click on the white point and move around)..
by simple click
both above pictures below are corrected pictures(exposures may be different due to the light change or the filter still have slight stop different
even-though both still provided different result but it look close to the original WB and color cast make use of grey card/white paper or some manual adjustment may help to approach more natural WB and colors .....
for me , I prefer Big Stopper as I can easily combine to use with GND filter ... even though
