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October 9, 2009 3:59 PM PDT

Indecent Exposure Podcast 65: Insights exhausted

by Lori Grunin
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Back to basics about bit depth and the great whiteout contest.

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EPISODE 65

Today's links:
News



Contests

To convert text to clickable links, at least in Firefox, install Linkification. We apologize for the lack of HTML link support in our comments; we had excessive spamming with link capability.

Last topic: White
Winner: Stage Fright

Next topic: Night. Deadline: Thursday, October 15, 12 p.m. ET
Note: To minimize confusion, we're now providing entry deadlines. They'll usually be Thursdays at noon Eastern time. You can still post links after that, which may still get included, but to ensure they get entered, that's the time you should target. To enter, please use the blog comments to provide a link to your entry, plus any background information you'd like to share with us and other listeners.

Today's questions
Back to bit basics

Dear Lori and Matt,
I had a question come up this week at my internship and I suddenly realized how little I know about bit-depth. I've always been aware of 8, 16, and 32 bit color mode options [in Photoshop], but never really got a handle on the intricacies of them. I did a bit of research and came up with the potential problem of banding in 8 bit mode, but I was hoping you guys could expound upon any advantages and disadvantages there may be when working in the various bit levels.
Many thanks.... - Brian


Senior Editor Lori Grunin has been covering digital imaging for two decades, but her memory's kind of sketchy on the details. You can hear about it every week on Indecent Exposure, the podcast she co-hosts with Matt Fitzgerald.
Recent posts from Indecent Exposure Podcast
Indecent Exposure Podcast 69: Intervals explored
Indecent Exposure Podcast 68: Inky extents
Indecent Exposure Podcast 67: Interrupting experiences
Indecent Exposure Podcast 66: Inferred extracurriculars
Indecent Exposure Podcast 65: Insights exhausted
Indecent Exposure Podcast 64: Incongruous expressions
Experiment 3: Break out of your box
Indecent Exposure Podcast 63: Intentional exhaustion
Add a Comment (Log in or register) Showing 1 of 2 pages (66 Comments)
by mad_marv October 10, 2009 9:20 PM PDT
My entry for the "Night" contest.
http://www.flickr.com/photos/madmarv/3176686120/

Snapped this photo while experimenting with long exposures and HDR. I didn't plan on capturing the jet takeoff, but it worked out perfectly. Load the original file size and zoom in on the jet's path. You can even see the blinks of the running lights.

Could you talk about white balancing night photos with street lights? Specifically how to make the sky look black instead of a dark version of another color. And also stay true to the colors of the lights in the pics.

I've been all across the spectrum trying to find the right effect. I've calibrated white balance and gotten really cool (as in un-warm) like this:

http://www.flickr.com/photos/madmarv/3499682773

And I've used Auto, Daylight and Tungsten white balances and gotten pics that all look over-cooked like this:

http://www.flickr.com/photos/madmarv/3499682279

And I've played with HDR and gotten really un-natural colors like this:

http://www.flickr.com/photos/madmarv/3540870436

Thanks.

PS. My handle is Mad Marv, not Mad Marvin.
Reply to this comment
by lee_adc October 11, 2009 1:40 PM PDT
Love your contest entry. The light trail from the aircraft really makes it.
Lee.
by KeithMac2007 October 14, 2009 2:19 PM PDT
A beautiful image!
by dgroszek October 16, 2009 2:33 AM PDT
Really cool shot! Too bad it is not a really really busy airport so more jet trails were available.
by Owen_Martin October 11, 2009 8:20 AM PDT
This is my entry for the "night" contest

http://www.flickr.com/photos/owenmartin/2829905201/in/set-72157616953707665/

I took this photograph for my work on light pollution, I wanted to show how the orange glow of sodium street lighting changes the visibility of the night sky.

I took this photo with an ISO of 3200 and a 30 second exposure. I used a 0.45x wide angle adapter on my 18-55mm lens at 18mm, making the image roughly equivalent to 8.1mm. I used a tripod to take this photo in order to get a sharp image.

Owen Martin
Reply to this comment
by KeithMac2007 October 14, 2009 2:21 PM PDT
I like the image I just wish you could have cropped out the rounded edges. Interesting way of getting to.
by lee_adc October 11, 2009 1:57 PM PDT
Here's my entry for the night contest.
http://www.flickr.com/photos/leeadc/2875845889

The shot was taken on the steps of Whitby Abbey, the seaside town that gave Bram Stocker the inspiration for the Count Dracular. I thought the 'ghost' figures were fitting.

Lee.
Reply to this comment
by dazza1734 October 11, 2009 4:34 PM PDT
My entry for Night
http://www.flickr.com/photos/82742117@N00/3624807368

Take after a shower at a local lake nearby in Queensland Australia

cheers
Daryl
Reply to this comment
by heidifischer October 13, 2009 5:58 AM PDT
beautiful!
by dazza1734 October 13, 2009 5:27 PM PDT
Thanks heidifischer :-)
by KeithMac2007 October 14, 2009 2:23 PM PDT
A very beautiful HDR shot.
by super6s October 14, 2009 4:01 PM PDT
This looks like it could be an infrared shot, even though it isn't. I see the color versions in the stream. Very cool.

Markitect
by dazza1734 October 14, 2009 7:33 PM PDT
Thanks Markitect and KeithMac2007
It was just after a shower of rain so looks like the grass etc is more reflective I guess
Cheers
by jeppcharts October 14, 2009 8:48 PM PDT
I'm diggin' it!
by bob.mcclenahan October 11, 2009 10:03 PM PDT
Night shot:

http://www.flickr.com/photos/bobmcclenahan/3638804002/in/set-72157619649685865/

Don't have too many night shots. This was taken during my vacation to Beaches Resort in Turks & Caicos. Tried to capture the family swimming the glowing lights.
Reply to this comment
by KeithMac2007 October 14, 2009 2:23 PM PDT
Nice!
by jeppcharts October 14, 2009 8:49 PM PDT
Absolutely beautiful!
by super6s October 12, 2009 8:24 AM PDT
Busy this week, so found an old one. This was a film photo scanned, so please pardon the fuzziness. It was scanned from the negative. Any pointers on this?

Night - Xmas in Keystone:
http://i125.photobucket.com/albums/p58/super6s/cnet/XmasinKeystone.jpg

This was from a skiing trip on xmas break, at least 12 years ago. The fuzzy people to the left were my girlfriend & her parents... now wife & inlaws. They got used to me running all around taking pictures early on. They pretty much ignore me now...I'll just catch up later.

Markitect
Reply to this comment
by KeithMac2007 October 14, 2009 2:24 PM PDT
Very tough to hand hold under those conditions. You seemed to have pulled it out.
by super6s October 14, 2009 3:59 PM PDT
I have always been able to find something to set my camera on... trash can, stroller, tree, car hood... daughter (doesn't work as well as you might think - but she thinks it is fun). Difficult thing for me is getting it level & steady long enough for a long exposure. I have been known to use my wallet, my hand or varoius other found items. I don't carry a tripod very often.

I like the two kinds of light in the shot. I think it makes the lodge seem inviting, but draws your eye away to the night skiing beyond... tension.

Thanks for the comment. It was a great & cold night.

Markitect.
by genebrowder October 12, 2009 8:48 AM PDT
This is my entry for the Night Contest:

People watching on the 16th street mall:
http://www.flickr.com/photos/37791728@N07/4003393403/sizes/l/

Highgloss
Reply to this comment
by lee_adc October 12, 2009 11:31 AM PDT
Great shot highgloss, love the sense of movement in the people. Lee.
by KeithMac2007 October 14, 2009 2:27 PM PDT
I like the grittiness of this image, I remember 16th street it is quite busy with people all the time. A great place to visit.
by jsanua October 12, 2009 5:47 PM PDT
heres my entry

http://www.flickr.com/photos/happybird101/3842675248/

we were walking the dog at around 10pm
Reply to this comment
by Trigger_Happy_Ind October 13, 2009 10:14 AM PDT
Hi Lori and Matt
Here is my submission for this week's contest.
http://www.flickr.com/photos/38413087@N02/4008994508/

It was a both a fun and frustrating experience shooting at night. The hand held shots were blurry in spite of the VR being on. I really missed a tripod. I had to change the shutter speed and ISO setting multiple times. I kept going from under exposed to over exposed. Here is one of the happy accidents
http://www.flickr.com/photos/38413087@N02/4009033020/in/photostream/

Karthik
Reply to this comment
by KeithMac2007 October 14, 2009 2:28 PM PDT
I really like the happy accident!
by Trigger_Happy_Ind October 16, 2009 10:48 AM PDT
Yup I liked it too. Though I have not been able to recreate it again. :) I tried it a few times but it could not get a similar shot. Though I did get the same song playing in my head the last time I went shooting "Lady Oh" by Neil Diamond. (May be it had to do something with city lights.)
by graceraven October 14, 2009 5:01 AM PDT
Hi all,

Here is my Night entry, like the halos in it. I used PS to tweak it a bit.
http://www.flickr.com/photos/30978872@N03/4004604845/
Thanks for your nice comments on the White entry.

grace
Reply to this comment
by KeithMac2007 October 14, 2009 2:18 PM PDT
Hello All,

This week I could not find what I thought would be a good subject so I improvised and used a bit of my photoshop skills. Close by is one of the city's water towers. I always thought they looked like it would make a good ship. I did shoot this at night other than that its a image of my own design.

http://www.flickr.com/photos/kmacke/4011799477/

Let me know what you think.

Keith Macke
Reply to this comment
by dazza1734 October 14, 2009 7:37 PM PDT
Nice work .... Keith reminds me of the Movie Men in Black
by jdmedina October 14, 2009 5:27 PM PDT
Hey Lori and Matt

Here's my submission for NIGHT

http://www.flickr.com/photos/bloodless/3246236888/in/photostream/

This one is part of a photo shoot I did for a band called Memento. I pulled this one off with only the available light I had which were the street lights. I tweaked the white balance to get that "studio lights" look

Hope you like it
Reply to this comment
by KeithMac2007 October 15, 2009 2:29 PM PDT
Nice group shot.
by anthonycaglio October 14, 2009 5:42 PM PDT
Here is my submission for night:

http://picasaweb.google.com/lh/photo/wXe6R--6vE--Eu1OGBOufA?feat=directlink

This was taken after a long day of exploring and playing in the snow of Flagstaff, AZ since we never see the white stuff in Phoenix. I like this photo because it is the cold twilight contrasting with the lone warm cabin.
Reply to this comment
by KeithMac2007 October 15, 2009 2:30 PM PDT
Wonderful colors here.
by DetroitBORG October 14, 2009 6:26 PM PDT
Night is probably my favorite shooting subject. Give me a camera and a tripod and I can spend all night outside.

Halloween is one of my favorite times for night-time photography, although I tried to keep these entries as Holiday agnostic as possible.

Here is my submissions. I really have a hard time weeding my choices!

http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Night+Light.JPG.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Purple+Night.JPG.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Night+Garden.JPG.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Cherry+Night.jpg.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Moon+Over+Home.JPG.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Branch+Over+The+Moon.JPG.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Night+Glance.JPG.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Shrouded+Moon.html
http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Through+The+Garden.JPG.html
://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Light+The+Way.JPG.html
Reply to this comment
by DetroitBORG October 14, 2009 6:29 PM PDT
The last link was pasted incorrectly.

http://www.mikekukielka.com/gallery/v/Photo+Contest+Entry/Light+The+Way.JPG.html
by twenty_two October 14, 2009 8:52 PM PDT
Le ciel nocturne (The night sky):

http://www.flickr.com/photos/11061372@N07/4013391668/

I thought "night" was going to be an easy subject, but then I realized that most of my pics were just taken *at* night and were not *about* night.

I actually took this pic while hunting for meteors. I saw a couple, but didn't get a pic of them, except maybe in this one:

http://www.flickr.com/photos/11061372@N07/3816469387/

But then again it might just be an airplane. Otherwise, I think the light pollution was way too strong to get a good show.

-ChewDawg
Reply to this comment
by KeithMac2007 October 15, 2009 2:31 PM PDT
A great perspective!
by dgroszek October 15, 2009 4:16 PM PDT
Same way about the assignment- everything is in the night. Nice photo. Bright blue star near top. Vega?
by dgroszek October 15, 2009 3:23 AM PDT
Hi again,
Well the subject was night. I had trouble with this subject as I saw night as the lack of light and not any objects "in the night". SO not having light and needing to get an image is (I suppose) impossible. Or maybe if I was in Earth orbit I could have taken a picture of the shadowed side of Earth and called it night, but that was out of my budget. So settled for this.
http://www.flickr.com/photos/35413458@N03/4013985114/

I know it looks like trees & is blurry and vague but that's kind of like night, right?

DaneinNY
ps LTS
Reply to this comment
by homebrandcola October 15, 2009 5:39 AM PDT
Hello everyone.

I was really excited about this weeks theme, but then it took me until now to work out what image to submit, and even now I am not sure. (In fact, I have just gone and changed my mind before clicking submit on the comment :-)

My entry:

http://www.flickr.com/photos/timhughes/3455139307/in/set-72157602195426616/

The Canberra Nara Candle Festival is held every year to celebrate the Sister City Relationship between Canberra and Nara, Japan.

I didn't really know what to expect the first time I went, but took my camera and my 50mm f1.4. Unfortunately I didn't bring a tripod! But then I had fun working with the limitations of hand-held photos at night.

These are my favourite night shots:

http://www.flickr.com/photos/timhughes/sets/72157602195426616/

http://www.flickr.com/photos/timhughes/2893899488/in/set-72157602195426616/
http://www.flickr.com/photos/timhughes/2893885640/in/set-72157602195426616/
http://www.flickr.com/photos/timhughes/4013381655/in/set-72157602195426616/
http://www.flickr.com/photos/timhughes/4013381127/in/set-72157602195426616/

Cheers, Tim.
Reply to this comment
by homebrandcola October 16, 2009 5:05 AM PDT
Peanuts.

Wrong link!

Real link to entry:

http://www.flickr.com/photos/timhughes/2893885640/in/set-72157602195426616/

This is from the Canberra Nara Festival.
by Mokhtar_Shakibani October 15, 2009 8:08 AM PDT
Hello,

Here is my entry for this week. This is an early night shot at St. George's in Grenada.

http://www.flickr.com/photos/mokhtar_shakibani/3846234505/

Thank you,
Reply to this comment
by Mokhtar_Shakibani October 15, 2009 8:09 AM PDT
Hello,

Here is my entry for this week. This is an early night shot at St. George's in Grenada.

http://www.flickr.com/photos/mokhtar_shakibani/3846234505/

Thank you,
Reply to this comment
by KeithMac2007 October 15, 2009 2:32 PM PDT
Looks like a very nice place.
by jeppcharts October 15, 2009 10:02 AM PDT
Hi Guys,

My entry for this weeks contest was taken at the Oklahoma City Memorial. The Memorial is such an incredibly powerful place to visit to begin with. At night it's just over the top.

http://www.flickr.com/photos/digital-salsa/4013938771/in/set-72157622030514474/

I had trouble deciding which one to post this week so here are the other candidates I chose from:

http://www.flickr.com/photos/digital-salsa/4013938587/in/set-72157622030514474/
http://www.flickr.com/photos/digital-salsa/4014701872/in/set-72157622030514474/
http://www.flickr.com/photos/digital-salsa/4014701518/in/set-72157622030514474/
http://www.flickr.com/photos/digital-salsa/4013937757/in/set-72157622030514474/

Love the show, as always!

Eric
Reply to this comment
by DetroitBORG October 15, 2009 2:02 PM PDT
I have to say this is my favorite photo among your candidates. http://www.flickr.com/photos/digital-salsa/4014701518/in/set-72157622030514474/
by KeithMac2007 October 15, 2009 2:33 PM PDT
Such sad memories, nice capture!
Showing 1 of 2 pages (66 Comments)
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The hosts of Indecent Exposure
Lori Grunin Lori Grunin has been an avid photographer for almost 30 years, and spent the past 15 attempting to master every aspect of technology.
Matt Fitzgerald Matt Fitzgerald has been involved with digital camera technology and the photo industry for more than 15 years. Matthew's background includes work as a professional photographer, a technical representative, and a repair technician.