Wednesday, April 29, 2009

Following on from that game a week or so ago…

 

The 10 minute Chilli

I’m not as happy with this one.

Post Date: Wednesday, April 29, 2009 5:37:50 PM (GMT Standard Time, UTC+00:00)
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 Sunday, April 26, 2009

These days, most of the photos I put online or print out have had some form of post processing on them. I’ve nothing against unedited photographs, I just think that there are a few things you can do that make a difference, things that a film photographer would do in a darkroom as a matter of normal practice.

One of the most common adjustments I make to a photograph is the application of curves.

(OK, if you’re an experienced photographer or know all this already, switch off now…)

Curves adjustments allow you to tweak the tonal ranges in an image without changing the overall exposure. At its simplest level, you can brighten shadows (or make them darker) or do the same for the highlights. Getting more advanced, you can adjust individual channels (typically - red, green, blue) in an image to increase the contrast of specific colours. You can even use curves to correct white balance issues.

Curves adjustments are available in Photoshop and Lightroom, but if you don’t have access to these products, try something like GIMP for free desktop processing or flauntr for a free online tool.

Typically, the tonal range of an image is represented in a curves dialog by a straight line running bottom left (dark) to top right (bright). When you adjust the tonal range, you manipulate that line, essentially adding a curve (can you see how they named it?)

Here’s some examples of pictures I’ve taken before and after curves have been applied. (Note, none of the pictures are great, but hopefully they show how curves can help).

In all the following examples, the original image is the part on the left.

Increasing shadows

 

By pulling the lower portion of the line down, dark tones within the image are intensified. The line becomes steeper as the contrast in the picture is increased, but the highlights in this (already blown out) image aren’t increased.

 

 

 

 

 

 

 





Increasing highlights

 

 

The original image here is a little dark, but simply increasing the exposure would have ruined the look of the dark grey suit. By pulling up the upper portion of the tonal line, the part dealing with the highlights, the shirt gets brighter as well as the face whilst the suit retains most of its original dark formal tones.

 

 

 

 

 

 






S–Curve

 

 

By using both the adjustments mentioned above, it’s possible to take a flat or lifeless photograph and breath a little contrast and life back into it. As the curve here shows, a little is often enough – remember the steeper the line the more contrast the picture will have.

 

 

 

 

 

 

 

 





Increasing a specific channel

 

 

Using the curves tool, it’s often possible to define a separate curve for each colour channel in the image. In this example, the highlights of the green channel have been stripped back, whilst the reds and blues have been made darker and more intense to differing degrees.

 

 

 

 

 

 

 

 






These are all pretty simple adjustments. It’s possible to have many points on the line and make lots of different adjustments all the way through the tonal range. But, typically a few minor modifications is all that’s needed.

Hopefully you can see the value of using curves to enhance an image. If your images are flat or dull, it’s easily the quickest way to bring some life into them.

Post Date: Sunday, April 26, 2009 6:48:33 PM (GMT Standard Time, UTC+00:00)
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 Saturday, April 25, 2009

Sometimes I think pieces of architecture suit black and white more than colour. I think so with this picture anyway, the original was flat and lifeless and any attempt to improve it left it feeling over contrasted (on this site, too much contrast? Never!).

However, I picked up a neat trick for B&W conversion a while back and it just made all the difference. And it’s really simple – just convert the image into “Lab Colour mode” in photoshop and then delete the channels you don’t want. You’re left with a crisp image.

A little (OK, a lot) of sharpening later and…

Post Date: Saturday, April 25, 2009 7:45:57 AM (GMT Standard Time, UTC+00:00)
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 Friday, April 24, 2009

I swear, I will not start randomly posting images on a Friday for no reason. I just liked the gold colours of the sunset…

Built from three exposures using HDR and then some additional tweaks, it lost all semblance of “natural picture” a while back, but I took a shine to the gold colours.

Donegal | HDR
Post Date: Friday, April 24, 2009 6:23:11 PM (GMT Standard Time, UTC+00:00)
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 Wednesday, April 22, 2009

Yesterday was an unusual day.

I turned down my first ever photographic engagement and I gave my first ever photographic talk.

Pretty impressive huh?

Well, I guess it’s all in how you sell it.

My work asked me if I’d take some photographs at an event they’re hosting in a few weeks. Sadly, it conflicts with actual real work for me, so I had to decline. Annoying, but it was lovely to be asked.

And my talk? CPA had a members choice evening where 6 members were asked to talk for 10 – 20 minutes about a selection of their photographs. I picked 8 photographs that represented things I’d tried with photography, from HDR through to portraits and trying to sell stuff.

Good fun, but more nerve wracking than I expected. I also felt a little down after I did it as the other talks contained photographs which just blew mine away. So, If you were talking to me after the event and I seemed ‘funny’ I was just feeling a little exposed and needed to run away!

That’s not to say I won’t do it again…

Oh, and that reminds me – People Photography 2009 must be coming round again.

Post Date: Wednesday, April 22, 2009 7:08:22 AM (GMT Standard Time, UTC+00:00)
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 Saturday, April 18, 2009

My father was showing me a flower today in his garden. He has a bunch of yellow tulips (I think) and a single red one.

Annoyingly. it was close to a fence with really bad light for taking a picture – I know, I tried. There was lots of cross light and dense shadow because of a fence right behind the flower.

I was about to give up when I remembered I had my flash gun and off camera remotes with me and, never having used them outside the house before, it seemed like an opportunity to try some form of fill in flash.

OK, my understanding of “fill in flash” is that when you have a subject that’s back-lit or has a shadow on it, you can use a little “pop” of flash to compensate. It doesn’t matter whether it’s a compact or an SLR, if you can turn on your flash you can use it to help fill in the missing light. Using this, you can expose the image, front and back equally.

I guess I took it a little further, by using the flash off camera (with my father holding it) and deliberately under exposing the background I was able to mostly isolate the flower. A little photoshop later and I ended up with this.

 

Post Date: Saturday, April 18, 2009 8:21:46 PM (GMT Standard Time, UTC+00:00)
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 Friday, April 17, 2009

Post Date: Friday, April 17, 2009 4:27:31 PM (GMT Standard Time, UTC+00:00)
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 Thursday, April 16, 2009

I was chatting to a friend after work tonight and doing the usual procrastination about things. to get me motivated (and because he’s mean) he set a challenge – to take the best photo I could in the garden in the next 10 minutes.

It’s actually quite tough to work under a time constraint. I guess it’s something professional photographers deal with – that knockout punch only lands once, that couple get married only once (we hope). As an amateur, if I miss the shot, it’s a pain, but nobody gets sued.

Anyway. As I grabbed my camera, I suddenly realised how constraining 10 minutes actually was. Realistically I needed to take one lens. I then realised I had to pick my shot as well – I could take a lot of shots quickly, but since I’d to pick a final choice as well, I had to draw a line so I had to get the shots I took right….first time.

I spent 6 minutes in the garden. I took 8 pictures. I then spent 2 minutes uploading and another 2 picking and tweaking my shot.

This is it…

As challenges go, it’s good fun to try. I guess repeating it will help focus your mind on the shot, but in future I’d allow as much time as you want for post processing if nothing else!

Post Date: Thursday, April 16, 2009 7:14:31 PM (GMT Standard Time, UTC+00:00)
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 Tuesday, April 14, 2009

I’ve been trying to improve my manual focusing recently. This is the closest from a batch of macro shots I took looking at weeds from a slightly different angle.

It’s still softer than I’d like, but I’m wondering if the viewfinder is out or my eye is out when working at silly angles.

Post Date: Tuesday, April 14, 2009 7:41:33 PM (GMT Standard Time, UTC+00:00)
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 Monday, April 13, 2009

Not very dainty (and not mine either).

Post Date: Monday, April 13, 2009 7:44:39 PM (GMT Standard Time, UTC+00:00)
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 Thursday, April 09, 2009

Not happy with this, but I’ve been sitting on it for a week or so and keep tweaking it. Rather than waste another week on it, I thought I’d post and ask for advice.

Maybe it’s just one of those “turd” shots. I still find it hard to be objective about my photographs and so spend hours lovingly crafting a waste of time – I know, if it’s fun it doesn’t really matter.

Post Date: Thursday, April 09, 2009 6:40:34 PM (GMT Standard Time, UTC+00:00)
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 Monday, April 06, 2009

My wife won’t let me put a bookshelf in the bathroom and this book is one of the reasons why.

"

The Digital Photography Book by Scott Kelby

As photography books go, it’s quite lightweight. Aimed at beginners, it provides tips and techniques ranging from filters through composition and it’s all written in a light hearted approach with a few attempts at comedy.

It’s not a traditional book, in that it doesn’t really evolve from one section to another, instead it acts as something between a quick reference and a fact book. It’s this approach that works well – even though a lot of the tips are things I know (and have even blogged about) I keep stumbling upon useful little titbits or new thoughts about old ideas. As a fact book, it’s easy to pick up, read a page or a section and put it down with no need to remember where you left off last time. It’s also very engaging and you find yourself reading tip after tip or considering those failed photographs in light of the things you now know.

If I was allowed a bookshelf in the bathroom, it would be perfect for those moments when you want to stimulate your mind while nature is stimulating your...



(Edit: Typically, I somehow managed to mess up the book link. Hopefully it's corrected now!)

Post Date: Monday, April 06, 2009 5:41:03 PM (GMT Standard Time, UTC+00:00)
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 Sunday, April 05, 2009

Reviewing my photos from Canada, I noticed I’d passed a milestone without any fanfare.

So, with much fanning of fares, here is the ten thousandth picture I’ve taken with my Canon 400D

You’d think a milestone shot would be better.

Post Date: Saturday, April 04, 2009 11:01:30 PM (GMT Standard Time, UTC+00:00)
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 Saturday, April 04, 2009

I’m playing around with photoshop again, thanks to a book a friend (yes, the turd commenter) loaned me. I’ll discuss the book in more detail another time, for now I just want to show you the impact of some of its suggested workflow.

Original Image

Final Image

I’m kind of curious what people think. Does the final image work better than the original?

Post Date: Friday, April 03, 2009 11:01:28 PM (GMT Standard Time, UTC+00:00)
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 Thursday, April 02, 2009

There’s a “Flora & Fauna” competition next week and it sent me scurrying into my photo library to see what I had for entry.

I ended up stumbling upon the pictures in this post:

The Automatic Rose

Now at the time, these pictures caused dissention, slit families, drove wedges between nation states…. (OK, a friend in work and I disagreed about whether they were any good). But since I liked it, I decided to use it for the competition.

But, being one of natures fiddlers and having seen some amazing stuff by a local photographer called Stephen McWilliams I decided to see if I could improve on it.

Here’s my new version:

Essentially, there were changes to contrast and vibrance, as well as an edit in photoshop to perform the selective colour element.

I quite like it, but my friend (yes, I too am amazed I can call him that after he was rude about the original) made the immortal comment -

“it doesn’t matter how much you polish a turd, it’s still a turd”

Humph.

Post Date: Thursday, April 02, 2009 6:31:43 PM (GMT Standard Time, UTC+00:00)
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I’m in danger of turning this blog from photography to “My Holiday Snaps”, so I promise there won’t be too may more Canada pictures here.

However, this picture kind of summed up one of the issues that I find most frustrating with photographing landscapes.

You travel 4,000 miles to some of the most majestic scenery i the world. You spend three or four days in the place. You wait and you pray…

And not once does the sky clear and give you the light the scene so richly deserves.

Maybe it’s me. Maybe I’m just not good enough to make a grey sky day seem amazing (and trust me the views were still great). Sometimes though, I think you just have to shoot and be dammed.

So I did.

Post Date: Thursday, April 02, 2009 5:03:43 PM (GMT Standard Time, UTC+00:00)
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 Wednesday, April 01, 2009

This was the first holiday I’ve ever tried using an SLR in snowy conditions. The temptation for the camera to over expose was really compounded by the fact I was wearing sunglasses a lot and so when reviewing pictures they always looked dark.

One of the interesting challenges on this trip was definitely shooting pictures from inside a dogsled while rattling along a really bumpy trail.

Here’s one example

(Oh, and for reference. These dogs don’t stop when they need to piddle or poop – they just kind of go on the run. So, if you’re ever in this position, make sure you watch out for flying poop!)

Post Date: Wednesday, April 01, 2009 7:59:44 PM (GMT Standard Time, UTC+00:00)
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