The Author – Bart Busschots
Creative Commons
Unless otherwise stated, the content on this site is licensed under Creative Commons Attribution, Noncommercial, No Derivative Works 3.0 License
Aug
23
My Detailed Review of ScreenSteps
Filed Under Computers & Tech | 13 Comments
If you follow me on Twitter you’ll have seen me vent my frustrations with ScreenSteps earlier this week. I held off on writing this review for a few days to get a bit more experience with the app, and to give myself some time to decide how best to phrase my issues so they don’t come across as being overly negatively. The short version is that I’m very conflicted about this app. Without a shadow of a doubt their idea is sound, as is their basic architecture. However, I found a few aspects of the interface exceptionally frustrating. Some parts of the app suffer from poor usability in my opinion, and another lacks what I consider to be very basic features. Ultimately, what’s missing is some fit and polish. However, it can’t be denied that the app works, which is obviously very important. I hope you can see why I’m so conflicted about this app. I want to love it, but I can’t – at least not this version.
Aug
19
Twitter Login Not Secured – WTF?
Filed Under Computers & Tech, Security | 9 Comments
I don’t normally log in to Twitter directly – I almost always use clients – but today I did, and I noticed something which shocked me – Twitter is sending login details over an unsecured HTTP connection! I have no idea if Twitter’s always done this, or if they are experiencing some kind of bug today, but either way, this is a serious issue.
Were I to be using public WiFi or any other un-trusted network it would be trivial for someone to get both my username and password and take over my Twitter account. Worse still – if I were to use the same credentials elsewhere like so many people do – all those other accounts could be taken over too. This is just not acceptable in 2009.
Aug
16
Photography is all about light, and you get some of the nicest light each day in the hours around sunrise and sunset, or the so-called ‘golden hours’. I’m not a fan of early mornings, so, for me, there is only one golden hour each day, but some of my very favourite pictures are taken during that hour, including this one.
I got this photo on an evening when I wasn’t really planning to shoot, I was out getting some much-needed exercise, and brought the camera along ‘just in case’. I’m certainly glad I did. The light was superb, and it’s very rare that the water is this still under the bridge. The dynamic range was very large in this shot so I tonemapped the RAW file in Photomatix Pro to recover both the shadows and the highlights. I have also edited this image for use as a desktop wallpaper on either a standard (4:3) or widescreen (16:10) monitor.
This is Pike Bridge between Maynooth and Leixlip in Co. Kildare, Ireland. It has two arches, one crossing the Dublin to Sligo railway line, and this one crossing the Royal Canal.
- Camera: Nikon D40
- Lens: Nikon DX AFS 18-55mm (D40 kit lens)
- Exposure: 1/80 sec
- Focal Length: 20mm
- Focal Ratio: f/8
- ISO: 400
- Camera Mode: Aperture Priority
- Exposure Bias: -1.0EV
- Processing: Generated by tonemapping a single RAW file in Photomatix Pro
Aug
12
Photo of the Week 77 – Ennis Friary
Filed Under Photography | 1 Comment
This is my 67th Photo of the Week, yet it is only the second monochrome image to make it into the series. I think this is because I absolutely adore colour, and feel rather out of my depth when colour gets extracted from the equation. It took me hours to process this shot the first time, then I got some feed back from people on a few flickr groups, and then it took me another hour or so to have another go and come up with something I not just liked, but liked a lot. Most of the time I only revert to monochrome as a fall-back, but I’m going to try change that, and spend more time experimenting with monochrome precisely because I’m not comfortable with it.
Returning to this image, I reverted to monochrome here because I didn’t have a choice. I had once chance to get a short visit to the priory, so I had to make do with what ever I got – which was mostly rain! At the very end I got a few shots in good sun, but I didn’t have the opportunity to re-shoot this shot in sun because of time pressures. So, what I got was an image with a blown out sky, a flat looking stone building, and almost no colours to speak of. I was either going to bin it, or go monochrome. Determined not to waste the shot, I went for the monochrome option – deciding texture was going to be what I needed to concentrate on – in particular, I wanted to recover details in the sky, and enhance the details in the stonework of the building.
Since I’d shot in RAW I started by tone-mapping the image to recover detail in the sky, and also to enhance details in walls. Then I converted to monochrome using the monochrome mixer in Aperture, before using Aperture’s dodge & burn plug-in to correct some side effects of the tone-mapping and to pick out the spire of the church a little better. After seeking and getting some opinions from others I also used some pretty dramatic levels adjustments to really push up the contrast and really make those textures jump out.
- Camera: Nikon D40
- Lens: Nikon DX AFS 18-55mm (D40 kit lens)
- Exposure: 1/400 sec
- Focal Length: 18mm
- Focal Ratio: f/8
- ISO: 400
- Camera Mode: Aperture Priority
- Processing: Generated by tonemapping a single RAW file in Photomatix Pro, then converting to monochrome in Aperture, dodging & burning in Aperture, as well as applying some other tweaks in Aperture.
Aug
5
Photo of the Week 76 – A Painted Lady
Filed Under Photography | 1 Comment
Last week’s photo of the week was the result of serendipity – this weeks is the inverse, it’s the result of planning and dogged determination.
I was, and indeed still am, working on a long-term project to photography all 28 species of butterfly that live in Ireland (you can follow my progress here). I’d been keeping an eye on the different species I saw flying around each time I came outside – and the day before I’d seen that there were Painted Ladies on the wing – a species I was missing!
The time was right, the weather was right, so I chose a spot (the Junior Gardens on the St. Patrick’s College campus in Maynooth), grabbed my gear, and set out on my mission to capture a Painted Lady. I was in a great mood, full of anticipation, but I wasn’t expecting a quick result. Butterflies never do what you tell them, and rarely do what you’d like!
I waited. Then I waited some more. Then a little more. Finally, out of the corner of my eye I spotted one! A Painted Lady. But it didn’t sit still. It flew from flower to flower never landing long enough to even get a focus lock. Then it flew over the wall and out of sight. On the one hand it was a relief to see that my quarry was indeed around, and that I’d chosen my spot correctly. On the other hand, it was a frustrating near-miss. But I continued to wait. Slowly and watchfully walking around around and around the garden.
Eventually another Painted Lady came into the garden. This one was a little more co-operative, landing on flowers and feeding – but not in a very photogenic way. I shot about 25 shots of this guy, but none were good enough to make it here. I waited some more. Another one, this one was feeding on fabulous pink Daisies, and what’s more the Daisies were tall enough to throw the other plants near them totally out of focus when I got in close with the 55-200mm. The setting was perfect, vibrant colours and a lovely bokeh. BUT, my winged friend insisted on landing on low-down flowers, hence always being half-obsgtructed by one or more taller flower heads. I didn’t get the perfect shot, but I could now see it in my head. It was a Painted Lady on one of these pink Daisies with that fabulous green bokeh. all I had to do now was wait.
I stopped making my rounds of the garden and stood watch over my perfect setting. It took another half an hour, but in the end, I was rewarded with the shot you see here. In all I spent two hours trying to get this shot. I think it was time well spent! (don’t worry, I wasn’t bored, I had my iPhone with me and was listening to Photo Focus – doing as the jingle instructs – making pictures, not just taking pictures!)
- Camera: Nikon D40
- Lens: Nikon DX AFS 55-200mm
- Exposure: 1/1600 sec
- Focal Length: 200mm
- Focal Ratio: f/8
- ISO: 400
- Camera Mode: Aperture Priority
- Exposure Bias: -0.7EV
Aug
3
I have been a huge fan of NetNewsWire for many years and have recommended it every chance I got on podcasts, blogs, and in person. Before NNW was free I was a happy paying customer, and, to be honest, I worried a little when it went free. Without charging for it, would the developers keep adding to it? Keep driving it forward? The answer to that was a resounding ‘no’, it stagnated. However, it was still every bit as good as before it became free, so the stagnation didn’t really bother me. It did what I needed it to do, and it did it well, so I was happy.
What did I need it to do? Firstly, it let me organise my feeds into folders nested as deeply as I wanted, and it allowed me to read a folder as if it was a single feed generated as a combination of all the feeds in that folder or sub-folder. I had literally hundreds of feeds, and had them perfectly organised in folders often three or even four levels deep. It also allowed me to sync read and unread statuses between my many copies of NNW on the three Macs I use and on my iPhone. Finally, it allowed me to keep “clippings” which were also synchronised between all my clients.
This all lead to a fantastic workflow. I would read my news feeds on what ever computer I was at, and, when ever I came across a potential story to include in the IMP Live podcast, I’d just drag and drop it to my clippings folder. On Fridays when it was time to assemble the show notes for IMP Live, I’d just go through my clippings folder on my Mac at home and remove stories from the clippings folder as I added them to the IMP Shownotes. Then, the next week, I’d start the process over again. It was the perfect news reading and gathering experience for me.
Then came last week’s ‘update’ to NNW. I use the term very very loosely, because all this ‘update’ did was strip out features, and hence destroy my news reading experience, and my IMP Live work flow. To paraphrase Churchill, NNW have managed to snatch defeat from the jaws of victory!
Jul
28
I have a theory that there are two very different ways to come home with a great photo, meticulous preparation, and the ability to capitalise on serendipity. Meticulous preparation speaks for itself, you plan what it is you are going to shoot, how you are going to shoot it, and you do as much research as possible up-front so you know where to be when and with what gear. The second type of great shot comes from a completely different skill, awareness. I seldom go out with my camera without a plan, and I usually come home with the shots I’d planned, but, I don’t limit myself to the plan, I’m constantly on the lookout for unexpected shots. Serendipity can provide for some superb shots, if you just remember to stay alert for the call of opportunity.
In many way’s I’m proud of the fact that most of the shots that make it to this series were in some way planned. But, that doesn’t stop me loving it when I get a totally expected shot because I happened to be in the right place at the right time with the right gear, and aware enough of my surroundings to realise that fact. That’s exactly what happened when I shot this week’s instalment.
- Camera: Nikon D40
- Lens: Nikon DX AFS 55-200mm
- Exposure: 1/200 sec
- Focal Length: 200mm
- Focal Ratio: f/5.6
- ISO: 200
- Camera Mode: Aperture Priority
- Exposure Bias: -0.7EV
- Processing: Used the Dodge & Burn plugin in Aperture to lighten the bird a little to help it stand out from the background.
Jul
25
What’s the Story with Tonemapping?
Filed Under Photography | Leave a Comment
I’ve become very fond of tonemapping as a photographic technique, and have mentioned it quite a few times in the descriptions of the photos I pick for my Photo of the Week blog posts. The more people see my tonemapped photos, and the more I mention tonemapping on Flickr, the more questions I get about it, so, instead of repeating myself over and over again, I figured I may was well just write an article about it that I can then link people to.
Lets start with some background, particularly with the concept of the dynamic range of a scene. You hear the term a lot, but I get a feeling a lot of people are not sure what it means. The simplest way I can describe it is as the difference between the brightest objects in the scene, and the darkest objects in the scene. Our eyes have quite a large dynamic range, at mid-day on a sunny day we can see both the things illuminated by the sun, and the things in shadow at the same time. Try that with a camera, and you’ll soon find that cameras have a much smaller dynamic range than our eyes. You’ll either end up with no detail in the shaded bits, or no detail in the bright bits, but try as you might, you won’t capture both! This is not a new problem, although it has gotten worse. Film has a bigger dynamic range than the JPEG images that come out of our digital cameras, but even film has a signifficatly smaller dynamic range than our eyes.
Jul
19
This week’s photo of the week came close to being binned. It really didn’t look like much before tonemapping, and even then, it’s technically imperfect. ‘Pixel Peepers’ would be horrified by the noise down in the bowls of this image, they’d also notice that the focus on the nose of the train is a little soft. Also, anyone can see that the motion blur is not as strong as it could be, and indeed, probably should be. Even after tonemapping, cropping, and quite a few tweaks in Aperture, I initially gave this image a low rating, three out of five to be precise. But, each time I scanned back through the project, the image kept jumping out at me. It kept grabbing my eye. First I increased it to 4 stars. Then, recently, 5 – my threshold for consideration for Photo of the Week.
I’ve spent a lot of time looking at the image to figure out why it kept catching my eye. I’ve figured out at least some of the things I like about it. The most obvious one being, it has a train in it! I also love reflections, so that’s a definite second reason. I also love the soft evening light, it really makes for great photos, but in this case it took tonemapping to bring out that wonderful light. Finally, I’ve always had a thing for panoramic crops.
- Camera: Nikon D40
- Lens: Nikon DX AFS 18-55mm (D40 kit lens)
- Exposure: 1/50 sec
- Focal Length: 18mm
- Focal Ratio: f/18
- ISO: 400
- Camera Mode: Shutter Priority
- Processing: Generated by tonemapping a single RAW file in Photomatix Pro.
Jul
12
Photo of the Week 73 – Holly in Bloom
Filed Under Photography | 1 Comment
It’s been a long time since I’ve posted one of my flower shots, so this week I’m sharing my favourite flower pick of the year so far. We all know how lovely red Holly berries (Ilex aquifolium) are around Christmas time, but very few people ever notice the delicate white flowers from which those berries come. This shot shows a closeup look at a Holly branch in bloom. This tree is growing in the Junior Gardens on the St. Patrick’s College campus (AKA NUI Maynooth South Campus) in Maynooth, Ireland.
- Camera: Nikon D40
- Lens: Nikon DX AFS 55-200mm
- Exposure: 1/1600 sec
- Focal Length: 130mm
- Focal Ratio: f/8
- ISO: 400
- Camera Mode: Aperture Priority
- Exposure Bias: -0.7EV