Snapshot

Back in July I stumbled across some photos of jewellery on Facebook. They were, I’m afraid, not terribly good. I sent a message to the group that had posted them and offered to go and take some better ones, free of charge.

I was pleased that they didn’t take my criticism the wrong way and I ended up falling into a conversation with them. I never got to take photos for them; those taking part in the jewellery class took their items home. We did though talk about the possibility of my running a photography class for them.

Skip forward three months and that is now going to happen!

The sessions will be on Tuesday evenings, 7pm to 9pm, from 26 November to 17 December, at Cup Cakes Coffee House in Sowerby Bridge. There is a £25 one off charge for those wishing to take part. Call 07762 884 135 if you’re interested. They are being run by the Phoenix Heights Community Group. They have a website, Facebook page and Twitter account.

Speed

One of Imogen’s friends, who is also doing photography in sixth form, posted that she is saving for a camera. Specifically a Canon 5D. In keeping with the tradition of Canon/Nikon rivalry I considered posted that auto correct had changed ‘Nikon xxx’ to ‘Canon 5D’.

I set about researching equivalent models in the Nikon range. The nearest I found is the D800. The criteria I used to judge ‘similar’ were sensor size and price. But the more I read, the more I think that at this price point, Canon has the better camera.

The Nikon is cheaper and has a higher resolution (36Mp) sensor, so surely it’s the better camera? Well, maybe for some uses, but I feel it fails in two respects, both a direct result of going for a high pixel density.

Because the sensor elements are smaller they are less sensitive. The ISO equivalent range is therefore shorter than the Canon and at the high end noise becomes an issue. Second, because there are more pixels, the processing engine has to work with more data. This reduces the frame rate to 4 frames per second.

I then did some reading around the current Nikon DSLR range. I have a D300, the current incarnation of which is the D300S. It’s the only DX model (ACP size sensor) that Nikon have in their “professional” range. Professional seems to equate to similar electronics to the base FX model, but with a smaller sensor.

I continue to be very pleased with this camera. It’s capable of 6 frames per second, 8 with the external battery pack. Reading through the technical specifications of the current range the only camera that I’d consider replacing it with is the D4. This is unlikely to happen any time soon as it’s Nikon’s flagship model and costs around £4,300!

Android Timer Fault

Android Jelly Bean suffers a weird problem when setting a timer that is not on a ten minute interval.

I first noticed it when setting a timer for frozen pizza. They take 12 minutes, but I found that the alarm didn’t sound until much later. With some experimentation it seems that asking for a timer to be set over 10 minutes, but not at a ten minute interval, breaks things. It adds 90 minutes to the time.

Timer fault on Android
Illustration of Android timer fault

In this example I said “set a timer for 12 minutes”. As you can see from the time in the top right corner it was just after 10pm. The timer should have been set for 10.14pm but has been set for 11.44pm. If a request is made to “set a timer for 20 minutes” it seems to work.

I see this fault on both my phone (HTC One S running 4.1.1) and my Nexus 7 (4.2.2).

This issue seems to be fixed by recent updates.

Laptops and Linux

I’m looking for a laptop and it’s proving very difficult! This will be my main machine, used for programming and general web stuff. It must run Linux, preferably Fedora. This is what I’m after:

  • 14 or 15 inch display with better than 1366 by 768 resolution
  • Graphics card that is supported under Linux. Needs to be good enough to run Gnome 3 but it won’t be used for games, so integrated graphics are fine
  • DVD re-writer, not bothered about Blu-Ray
  • 256Gb SSD drive (128Gb would do)
  • Intel Core i5 or better
  • Decent battery life
  • Backlit keyboard
  • USB 3 port(s)

I’m working up a table of manufacturers/models which I’ll publish here soon. In the mean time, any pointers would be very welcome. Thanks!

Update 1: Dell Latitude are looking like the favourite at the moment. Only missing USB 3.

Update 2: After much deliberation I have gone for a Dell Vostro 3550. The other factor that I didn’t include above is now much I’m willing to pay for a laptop. The Latitude looks great, but at nearly £1,500 it’s way too expensive. (It also doesn’t have USB 3 ports.) The Vostro doesn’t match on a few of the requirements; resolution is 1366 by 768 and the hard drive is a 320Gb SATA, though spinning at 7,200 RPM. Given that my current laptop is an Asus A6000 the new machine should be a joy to use!