Assignment: Filters (10 Sep - 24 Sep)

[Miss Mae]

This photo is too old, but it is one of my favorites using post processing filters in photoshop.

[mrteacherdude]

Redshift - when traveling quickly away from a source of light, a shift will occur in the red direction. Similarly, when traveling quickly toward a source of light, a blueshift occurs.

Blue filter applied to everything outside the front of the vehicle, red applied to the image in the rearview mirror. The fingers in the mirror don't count (LOL), I didn't notice those at first; they should be "normal" color because they are neither in front of me nor behind me.




Shot @ 6:32 am 9/16/08
Canon Rebel XTi
18-55mm (kit version) @ 55.0mm
ISO 200
1/50s @ f/5.6

[naeno]

Originally Posted by Ali QJo

Naeno, that is such a beautiful shot! What a brilliant, creative idea!

Thank you so much!! You just made my day!

[starrylaurie]

Since I have no "real" filters, I did them in post. I did NOTHING to the pic, except add a red filter at 70% opacity and a yellow filter at 40%.



Camera: Nikon D60
Exposure: 0.003 sec (1/400)
Aperture: f/4.8
Focal Length: 110 mm
ISO Speed: 200
Exposure Bias: 0/6 EV
Flash: Flash did not fire
ISO Speed: 200
Date and Time (Original): 2008:09:11 13:11:03

[wulf]

Originally Posted by dayinmay

I've read the previous posts and done some Googling, but I'm still not quite understanding so I'll ask this stupid question: Would fiddling with the various sliders in Lightroom (eg - hue/luminance/saturation/etc.) be considered as applying a filter via post processing?

For the post-processing approach, it is best if you can use a program that allows you to overlay a translucent layer (I don't know if Lightroom has this). Adjusting sliders is more run of the mill processing and won't teach you as much as discovering the effect of, say, overlaying a subtle orange layer to warm an image.

Do be creative, strive to develop your skills and tell us a bit about what you did. Given two equally striking pictures, the one with some information about what you did and why is likely to win out because it explains what you learned and helps others learn from your example. Some effects will be subtle (eg. starrylaurie) and others dramatic (inkista) and you may even want to play with the idea of making the filter more obvious (like Igor did with the polarising filter or I did with my initial shot).

That also goes for pictures that are straight out of camera via WB, lens filters and adjusting the light; give us an excellent picture and tell us what you did.

Wulf

[therolfes]

Boy Dreaming of Star Wars (Inspired)

I was inspired by a glow edge filter and want to show the forum its striking effect. Sometimes to make one filter work well, a different filter should be applied first. In my case, the glow edge filter left everything too dark until I ran something to bring out the contrast. Click on the picture to go to my Flickr site, then click on "THEROLFES photostream" to see the original photo, the glow edge only filter, and the film grain filter versions.

Camera: Olympus E-510 (Kit w/ two Zuiko lenses)
Date (HST): 14 Sep 2008
Aperture: f/3.5
Exposure: 1/20 sec
ISO Speed: 100
Exposure Bias: 0/10 EV
Focal Length: 14mm
Metering: Pattern
Flash: None
Manual Filter/Lens Attachment: UV Filter Only
Software Editing: Crop, Film Grain Filter to bring out contrast and then a Glow Edges Filter (Windows Digital Imaging Suite)

http://www.cutcaster.com/studio/pub/837387699

[wulf]

Originally Posted by therolfes

I was inspired by a glow edge filter and want to show the forum its striking effect....

I generally don't comment on entries but I can see a potential confusion here. Some post-processing programs call their various special effects "filters" but that is something different to the idea of "filtering light" mentioned in the brief for this assignment. Think in terms of what you might do by putting some sort of extra layer in front of the lens (even if you apply the effect virtually).

The more convoluted filters which can't be replicated optically, like edge detection, can produce fantastic results but are outside the scope of this week's assignment.

Wulf

[UK_tomcat_fan]

Quick question, does this have to be totally using the filters in PP or can we using blending effects as i have a really neat picture of XH558 Vulcan i created using the blending effects in photoshop.

If this is a "legal" entry i may add it or if my Fiance (Tomcat's English Rose) reads this she may add it....

[mrteacherdude]

Considering what Wulf wrote in a previous post, I figured I should add more information and a comparison photo to my original post.

Original photo:



Filtered:



The idea was primarily to (over)dramatize the effect of doppler shift (sorry, I do have a strong tendency to be a science nerd because that's what I do for a living). The filter did not need to be as pronounced as I've done in the photo, but it does make the idea obvious and also illustrates (I think) the effect relative to the observer. Young students don't always notice subtle...

To apply the filters I applied two filter layers to the original photo, one deep red, and the other deep blue. I then masked the red in the portion of the photo outside the vehicle, and masked the blue in the mirror. Oh, and I "fixed" the fingers too by masking that portion in both photos.

[FocalFrenzy]

I was sitting in front of the campfire last night, enjoying a cup of after dinner coffee, when I noticed how the cobalt blue glass of my cup really made the flames change. It almost looks like smoke. I rinsed out the cup, and held it in front of my lens as a make shift filter. I wish the glass were more optically favorable, as focusing was impossible. I hope this qualifies for the assignment.

P.S.
For those who knew my camera had conked out on me, I'm glad to say it's back up and running. It turns out that one of the battery contacts inside, had become loose. It cost less than $10.00 US to fix. Thanks to all who gave suggestions and consolation.


Camera: Sony DSC-H1
Exposure: 0.002 sec (1/640)
Aperture: f/3.5
Focal Length: 49.8 mm
ISO Speed: 64
Exposure Bias: -2 EV
Flash: Flash did not fire
Orientation: Horizontal (normal)
Date and Time: 2008:09:17 21:08:11
Exposure Program: Shutter priority
Date and Time (Original): 2008:09:17 19:22:33