DavidHunt.ie

I got my hands on a Raspberry Pi last week. I got to play with it for only a few hours since then, but it’s pretty sweet.

Technically, it’s a marvel. The geek in me loves it.

However, I have the feeling it’s not yet ready for general use. Don’t get me wrong, it’s wonderful as it is for education, but I think a lot of people are going to use them as general purpose computers, media centers, etc.

The main reason is software availability. While there is a graphics accelerator build into the board, the drivers for the windowing system don’t exist yet. That means that for web browsing, and other general tasks, the graphical use interface is very sluggish. A typical user would get very frustrated trying to browse the web. And there’s not Flash yet, but Adobe is rumoured to be working on it.

Also, to use it as a media centre, XBMC have made good progress on getting hi-definition video working on it, and I’ve seen a 1080p stream running on it. It’s impressive, but XBMC is only just out in beta, so it’s still rough around the edges.

But for the hobbyist, there’s a world of possibilities. GPIO boards are starting to appear, so it’s only a matter of time before we see Raspberry Pi’s controlling a whole world of gadgets….

Apologies to all who where trying to get at the website yesterday. Due to a non-delivery of an email last month, I was not reminded to renew my hosting. So, yesterday, they suspended my account. 30 minutes later, I had paid the fees, yet it took almost 24 hours for my website to be re-activated. I’m not happy.

Anyway, welcome back all….

Regards,

Dave.

Since I got myself some new table-saw blades, along with the capability to cut acrylic/perspex, I thought I’d have a go at manufacturing a new, neater version of the tri-flash I designed last year. This one was going to be much smaller, and require less setup time. The result is as follows:

The nice thing about this design, is that it distributes the strobes quite evenly around the centre point, so that when an umbrella is inserted (that’s what the hole in the middle is for), it illuminates it nicely.

Here’s a closer look:

And a front view:

Also, here’s the original flash/brolly holder before modification. You can see the piece I removed in order to attach the new acrylic pieces.

In order to make the acrylic pieces, I cut a length of acrylic, and made a notch in it. Then I used cyano-acrylate (super glue) to glue the notched piece onto another flat piece of acrylic. The bond of the cyano-acrylate seems to be very strong, very good for acrylic. Maybe the hint is in the “acrylate”

Anyway, I ended up with an 8-inch lenght of hotshoe-holder, which could then be cut it to length to make several hotshoe holders, and I could bolt them onto the brolly holder at various angles, as can be seen in the second image above.

As for the setup time – with the previous design, I had to set up 3 brolly adapters on the “cross”, then attach three strobes. Now it’s pop the modifued brolly adapter onto the stand, and then the three strobes. About half the setup time. And it’s neater, and I think much cooler looking with the transparent acrylic

The three strobes in the top image are triggered by a single trigger using a 4-way cable. You can see the DIY sync ports in the muddle of the red window, as the IR modules have been removed.

I came across an interesting looking app in the app store called Photosmith. It’s described as “the iPad mobile companion for Adobe Lightroom®”. At €14.49, it was quite an expensive app, but since I’m interested in all types of tethering, especially those that go with my camera and software I’ve already purchased, such as Lightroom 3. The only piece of hardware that I was missing was the iPad Camera Connection kit, so I went into my local Apple store and picked one up for €29.

The iPad Camera Connection kit gives you two dongles, one with a slot for an SD card, and the other with a USB connector, for direct connection to your camera via USB cable.

The initial thing I discovered (I have a habit of reading the manual after I’ve tried things out), was that this is not really a tethering solution. It’s more of a backup of the images on your camera, which you can then go through, categories, apply ratings, keywords, etc, then later import into lightroom. There is no option to send direct to the iPad as your shooting. I was kinda disappointed at that.
Also, the other similar application I have on the iPad, called Shuttersnitch, only works wirelessly, not over the USB cable, so does not work with the Camera Connection Kit. Now there’s something for either team of developers to look at, proper tethering via USB cable. There’s several reasons why this would be a good idea.

1. A WFT-E4 wireless grip for my Canon EOS5DII is phenomenally expensive.
2. Eye-Fi with any Compact Flash based camera is notoriously difficult to get working, I’m still trying to find a suitable CF-SD adapter so my Eye-Fi X2 Pro will work in my 5DII.
3. Large RAW files transfer MUCH more quickly over USB cable, so if your in the habit of shooting your subjects in burst mode, that kinds rules out Wifi tethering.

Anyway, the general mode of operation is as follows:

1. Take bunch of pictures.
2. Connect your camera to the iPad via the USB cable and the Camera Connection Kit.
3. The iPad photo app will kick off and ask you which images you want to import. Import your selected images.
4. THEN, you start up Photosmith. You can browse through your imported images, tagging, rating, assigning colour codes, etc. just like Lightroom.
5. Once you get back to your PC you can then import the images using the Import wizard in lightroom to get the images from your iPad to your PC/Mac.
6. All the ratings are imported along with the imported images.

One thing I found is that the default connection method is wifi. This takes absolutely AGES when working with RAW files that are up to 30Mb each. So slow in fact, that I almost gave up at that stage. But I persisted, and found an “advanced import” method where you connect your iPad via USB, import the images into lightroom with the normal method, then use the Photosmith sync to get the ratings metadata. 3 seconds per image as opposed to 30. And the metadata was applied to the correct files even though they were imported via an alternative method to the Photosmith sync.

So while it’s not a tethering solution, it’s a great way of having a backup of your images in the field. Even if you were only to sync your camera to your iPad every few dozen images or so, you’ll have a backup on the iPad in case of flash card disaster. And, if you’ve got your images on the iPad, you can categorise them and tag them as you shoot in the field, or on the trip home, which will save you some time when you get back to your main post-processing computer.

Now that I have it, and have sorted out the “advanced import” option, it’s certainly a usable and useful addition to my list of iPad photography apps, and makes the iPad more useful in the field. If only there was an option to display images as you shoot them!

References:

Apple iPad Camera Connection Kit:
http://store.apple.com/us/product/MC531ZM/A
Photosmith Website: http://www.photosmithapp.com/

The weather in Ireland is so unpredictable. I live in the mid west of Ireland about an hours drive from the coast of Clare. So when I decide to drive to the coast to do some landscape photography, it’s always a gamble. It’s even more of a gamble when I head off to a place that’s an hour-and-a-half or more. So, the other evening, myself and a regular photographic partner of mine, John Hickey, decided we’d head off to Fanore beach at about 8pm, which would get us to the coast with about an hour to sunset. As we drove, I had a good feeling about the weather. That doesn’t count for much, I’ve had good feelings before, only for the sun dive down behind a thick layer of misty clouds leaving the sky with as much colour as an old black-and-while TV.

When we arrived, the sky looked good. It looked very good. John and myself headed off in seperate directions. After taking a few initial shots, what was was coming up on the preview screen on the back of my camera looked reasonable. If I got one keeper out of a trip to the coast, I’d be happy. Normally, one trip meant one keeper, and on rare occasions two.

We kept shooting until about 40 minutes after sunset, and the time flew. Each direction I looked gave a new possibility. Fanore beach has a rich variety of foregrounds, from ripples in the sand, to lonely rocks, to green, lichen-covered slabs.

This was one of the rare occasions I got multiple keepers. I’m showing a selection here, but I guarantee you there’ll be more shots processed out of that evenings collection of RAW images.

There’s something about that kind of sky, and that kind of light, combined with the kind of place that you can only get in The Burren which only comes together once in a blue moon. And that evening it did come together. It was Magic.

–edit– here’s a couple more –edit–

I registered on a website called Fine Art America, and posted up a couple of images. I’m going to post up a few landscape images, and maybe order a few canvas prints for myself. Here’s a few links to some of the pages on there where you’ll find the type of stuff that’s available:

ireland art