crowecg

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crowecg last won the day on 13 April

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About crowecg

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  1. A couple more of the gull in action, although I underestimated it's rate of climb and as a result didn't get all of the wings into the frame. Lift off Up and Away Next mouthful Whilst it might not be the most interesting bird, it did follow a regular pattern - flying off to get a mouthful of food then returning to the middle of the pond to eat - making getting some action shots a bit easier.
  2. A brief outing to the local duck pond today D7F_0560 D7F_0560 D7F_0560 Nothing too exotic there, but a little bit of action.
  3. Lavender?
  4. I guess the key difference will be that you have no recording time limit unless you run out of storage or power. You may get a range of extra video formats.
  5. Mike, it must have been bad if they dug it up - such repairs are often done by trimming and relining from the inside these days. Alan, I was about to comment that the numbering on such covers could be the load limit, but given that it is about 1m in diameter and 0.15m thick, it probably weighs about 250kg, which is around 5cwt. With regard to pipe sizing, I was reading a book about early works of civil engineering in Victoria and a number of major water supply works were constructed before anyone thought to record rainfall, even for a single season, never mind over a period of several years. Apparently, civil engineering design based on mathematical principles didn't take off in British dominated territories until late in the 19th Century. It was considered a weird French idea, which is why many of the mathematical theories behind various engineering fields were dominated by the continental Europeans despite the extensive British engineering works in the Victorian era. It turns out that Stoney Creek Reservoir in the Brisbane Ranges National Park to the west of Melbourne was actually one of the earliest dam walls to be designed mathematically as well as one of the earliest to be built of concrete in the modern era, at a time when the standard of engineering in the colonies was overtaking the mother country.
  6. The fashion here is to shoot the external shots just around dusk, so that the interior lights brighten the windows, but there is still enough light for the outside. However, that is something that would be limited to one (or if you and the client are early risers, two) properties a day. Sounds like your budgets wouldn't cover that, but it could work as a 'premium' option.
  7. looking good from here,
  8. You guys are making it so hard for me to resist!
  9. Finally remembered to shoot one. they often look so forlorn and always seem to have a buckled back wheel.
  10. Hopefully you can get them under control without too much reworking of your house or finding your shooting restricted to Sunday mornings.
  11. If they have just about got it right with the D850 live view, then the prospect of new mirrorless options is looking good. I've only ever played with older, cheaper versions and there is lots of clattering and movement in a live view exposure.
  12. I've tried numerous times to get well exposed and details clouds and over the Easter weekend, I got some interesting skies to give it a go again. Cloud 1 Cloud 2 And a view across the bay to Melbourne CBD. Cloud 3 Sometimes, whilst playing with the curves control to try and get the exposure and detail I'm aiming for, things go a bit crazy and I end up with a sine curve across the graph and some interesting results. Cloud 4 Cloud 5 Number 4 is a rework of number 1. Will I ever get it perfect with a single exposure? Or is this an excuse for a new camera? And has the detail survived JPEG compression and whatever else the web throws at it along the way?
  13. Despite the common misconceptions, the ground isn't "rock steady' and it doesn't only move during certain moments of ecstasy. Even within the field of geotechnical engineering, the understanding of ground vibrations is full of misconceptions and over-simplifications. I suspect your problem may well come from well beyond your the walls of your little studio. The theories for ground vibration are similar to those in other fields, such as audio, and Michael, I believe you have a good understanding of audio, so will also have a reasonable knowledge of things like resonant frequency and amplitude. The whole issue is further complicated by human perception of vibrations, which can vary with not just the amplitude, but also the frequency, direction and whether the person is standing, sitting or lying down. I've been involved a little bit in ground vibration monitoring, one example, many years ago, I was responsible for measuring the vibrations due to blasting in a new sewer tunnel. Unfortunately, one day, I got into trouble for missing the blast - a van had driven up over the curb to park on the footpath and that had triggered the monitoring equipment and I couldn't get it reset in time to record the actual blast vibrations. Other times, I have been involved in seismic surveys, which have involved trying to detect the vibrations of a heavy sledge hammer blow along a 100m long line of geophones. Hopefully, Michael you haven't been too quick in dismantling your new shelves. I've had a look at a map of Big Rapids and the only obvious source of large ground vibrations would be the Interstate to the west, but there could be other smaller scale industrial sources too. From your post, I'm guessing that your vibrations seemed to disappear on Sunday morning? Is it just that Sunday mornings have less traffic or the industry is shut down and come Monday morning your vibrations will be back. Your suggestion of wind could also be a cause - was there much change in the weather in the last few days. I suspect Alan's comments about enlarger vibration could also come from the fact he has moved from suburban Melbourne (and I think he once mentioned that he worked near Ormond, which was the intersection of a busy road and a rail line) to rural Tasmania. As for Michael's problems, there is the issue of identifying the source of vibrations and for example, if it is traffic, timing your work to times when traffic vibrations are low. As for your house, given that shelfs attached to the wall beams seemed to reduce the vibrations, it could be simply that the resonant frequency of the floor timbers is close to that of the vibrations (or a harmonic thereof). A change in the type and thickness of the timbers could help reduce the problem, changing the span of the timbers (which would be a more complex task) could also change the resonant frequency of your floor. Another factor is that the upstairs location will experience a greater amplitude of vibration due to effectively being the free end of a vibrating column. If you really want to get to the bottom of this, you could get yourself a geophone and then I'm sure you could apply some of your audio knowledge to measuring the vibrations (a geophone is really just a sensitive microphone) and then working out the best way to avoid or get rid of the vibrations.
  14. 37Mbs is pretty good for the southern hemisphere! Still waiting for the much touted National Broadband Network to arrive at my house. Every time it gets close to the planned construction date for my location, something happens and it all changes. We did actually get a cable installed recently, but it doesn't do anything and probably won't for another 6-9 months. In the mean time, stuck with ADSL, although we do get a decent speed from that - usually 10-15Mbs.
  15. I guess cables are finally catching up with processors! I've also just read that the latest MacOS now supports external graphics processors over USB3. Alan, I wonder if the JPEG only output is because some of the lesser cameras are only USB2, which would probably be a bit of a bottleneck in this process.