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  1. #1
    Senior Member

    Stacking photoshop layers concept vs using ND filter

    Pretty much said in title. Well I have seen recently a video where man explained why we actually don't need ND filter to achieve, in his example, milky effect when shooting water by taking for example 10 images in 1s shutter speed and then stuck them as layers in photoshop. One thing is certainly sure, that image definetlly has less noise, and let's say desired effect is achieved in that example, but I'm not quite sure about it... Of course, moreover there are many issues with that such as 10x more storage space taken in memory card for example..
    I still didn't try this, but I'm planning to do it.
    What are your opinions about this concept?

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  2. #2
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    Don Kuykendall's Avatar

    Re: Stacking photoshop layers concept vs using ND filter

    I have done this before but the use of the ND and low ISO, High aperture and slow shutter speed I think still looks better
    BUT
    Shooting it in 10 shots and stacking them has the advantage of being able to use 2 or 3 or all 10 shots to get just the degree of blur in the water that works for the shot.
    Thanks/Like Gruyanidas Thanks/liked this post
     

    ================================================== ============================
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  3. #3
    Senior Member

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by Don Kuykendall View Post
    I have done this before but the use of the ND and low ISO, High aperture and slow shutter speed I think still looks better
    BUT
    Shooting it in 10 shots and stacking them has the advantage of being able to use 2 or 3 or all 10 shots to get just the degree of blur in the water that works for the shot.
    Well it's worth trying at least to compare results. The point of that video was how photographers actually don't need cpl, nd and uv filters at all and how desired effects could be achieved differently.

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  4. #4
    Staff
    Super Mod
    Don Kuykendall's Avatar

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by Gruyanidas View Post
    Well it's worth trying at least to compare results. The point of that video was how photographers actually don't need cpl, nd and uv filters at all and how desired effects could be achieved differently.

    Послато са SM-G903F уз помоћ Тапатока
    CPL is the first filter I would ever be without. The more you can do in camera the better off you are. Same with Split ND filters. It can get shots you just can not get as good in any kind of Post Processing like HDR.

    I am a big proponent of Post Processing as many people here will tell you but the first thing you do is to try your very best to get it right in the camera and then finish up in Post.
    Thanks/Like cwgrizz, RocketCowboy Thanks/liked this post
     

    ================================================== ============================
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  5. #5
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    RocketCowboy's Avatar

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by Don Kuykendall View Post
    I am a big proponent of Post Processing as many people here will tell you but the first thing you do is to try your very best to get it right in the camera and then finish up in Post.
    Exactly! Could be one of those nuance differences between a graphic artist and a photographer. The former enjoys spending lots of time behind the computer working on images, where the photographer enjoys spending lots of time behind the lens capturing images.

  6. #6
    Staff
    Super Mod
    Don Kuykendall's Avatar

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by RocketCowboy View Post
    Exactly! Could be one of those nuance differences between a graphic artist and a photographer. The former enjoys spending lots of time behind the computer working on images, where the photographer enjoys spending lots of time behind the lens capturing images.
    In the last year I have been working more on getting it right in the camera. My mentor gets pissed at me if I do to much in the computer. I still will remove a trash can or a offending limb or fence though.
    Thanks/Like RocketCowboy Thanks/liked this post
     

    ================================================== ============================
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  7. #7
    Senior Member
    aroy's Avatar

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by Gruyanidas View Post
    Pretty much said in title. Well I have seen recently a video where man explained why we actually don't need ND filter to achieve, in his example, milky effect when shooting water by taking for example 10 images in 1s shutter speed and then stuck them as layers in photoshop. One thing is certainly sure, that image definetlly has less noise, and let's say desired effect is achieved in that example, but I'm not quite sure about it... Of course, moreover there are many issues with that such as 10x more storage space taken in memory card for example..
    I still didn't try this, but I'm planning to do it.
    What are your opinions about this concept?

    Послато са SM-G903F уз помоћ Тапатока
    Stacking images is an old concept. With stacking you can achieve any one of the following effects
    . Averaging of the image elements. That will smoothen out the water flow just as in long exposure
    . Noise reduction of static objects used primarily for astro photography
    . Removal of transient object. Here the software removes all non-static objects, for example a 20 shot of a busy road when processed can get rid of most pedestrians and automobile traffic leaving a clean shot.

    What you are referring to is the first option and it works perfectly. The beauty of stacking that you can omit any image that has an intrusion, say a person walking across or a bird flying.
    Thanks/Like Gruyanidas Thanks/liked this post
     
    D300, D3300
    105F2.8 AIS, 70-300 G, 50F1.8 AF, 16-85G ED VR, 18-55DX VRII, AFS DX 35mm F1.8
    2 x SB-800

  8. #8
    Senior Member

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by aroy View Post
    Stacking images is an old concept. With stacking you can achieve any one of the following effects
    . Averaging of the image elements. That will smoothen out the water flow just as in long exposure
    . Noise reduction of static objects used primarily for astro photography
    . Removal of transient object. Here the software removes all non-static objects, for example a 20 shot of a busy road when processed can get rid of most pedestrians and automobile traffic leaving a clean shot.

    What you are referring to is the first option and it works perfectly. The beauty of stacking that you can omit any image that has an intrusion, say a person walking across or a bird flying.
    Looks like there are more advantages than disadvantages of stacking shots in post production. I think I'm going to love it mostly because of sharpness hence you have "clear" lense without any physical element in front of.

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  9. #9
    Senior Member

    Re: Stacking photoshop layers concept vs using ND filter

    What is better to do for the final image: To make some desired adjustments in software on 1 raw file and then apply it to all same shots and then do stacking or to do all let's say "technical" job with all raw files directly from the camera and then make adjustments to final image or its just the same?

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  10. #10
    Senior Member
    aroy's Avatar

    Re: Stacking photoshop layers concept vs using ND filter

    Quote Originally Posted by Gruyanidas View Post
    What is better to do for the final image: To make some desired adjustments in software on 1 raw file and then apply it to all same shots and then do stacking or to do all let's say "technical" job with all raw files directly from the camera and then make adjustments to final image or its just the same?

    Послато са SM-G903F уз помоћ Тапатока
    Most advanced stacking software will have provision for both pre and post stacking adjustments to the images. There are numerous algorithms used, so it is better to do a thorough study of material available on the net, before starting.
    D300, D3300
    105F2.8 AIS, 70-300 G, 50F1.8 AF, 16-85G ED VR, 18-55DX VRII, AFS DX 35mm F1.8
    2 x SB-800





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