Moments in Time Photography
You are currently browsing the archive for the Review category.
I continued my sensor noise measurements, this time with a Canon EOD 5D. The setup was the same as previously, the only change being the exact location of the WhiBal card.
Surprisingly (at least to me) there is a little noise evident even at the very lowest ISO settings. Read the rest of this entry »
I recently decided that a new tool would be nice and that I needed a fairly compact camera that performs well under low light conditions. Both the Canon G9 and the Panasonic DMC-FZ18 seemed interesting from their specs. [I also looked at FujiFilms offering because in the past they performed very well at high ISO. Unfortunately, a camera with the SuperCCD and image stabilization is currently missing from their model lineup.]
Trawling the net for hard information on sensor noise for these fairly new cameras proved to be a frustrating experience. There seems to be very little information available that allows a good comparison of various cameras. Yes, I know there are many snapshots available, but the conditions under which they are taken varies greatly.
The big review sites (I personally prefer dpreview.com) are somewhat better, but none had a review of both cameras online. In fact, dpreview had published a review on neither camera.
So I decided to create my own test setup to determine how the cameras that I have access to perform and to allow a comparison. Because I just got it, I started with the Canon G9.
Read the rest of this entry »
I purchased a Skymaster DVR 7400 digital satellite receiver with time-shift capability. In the box is the receiver itself and a plastic remote control plus the batteries for the remote as well as a user manual with instructions. The receiver appears well-built and sold from the outside. The remote is a bit on the light side of comfortable and doesn’t feel pleasant in my hands. It is perfectly useable, however, so I won’t complain.
Hooking the receiver up was a snap: connect the satellite feed to the satellite input and one of the two SCART outputs to the TV. There is also an S-Video output as well as an optical S/PDIF digital and RCA analog stereo audio outputs all of which I did not use.
Upon turning on the receiver it automatically found the Astra 19.2°E satellite that my dish is aligned to (this is a no-brainer since it is practically the default satellite here) and tuned in the channels. Wonderful!
The EPG (electronic program guide) implementation is strange: it seems to download all data in real-time, so that it often takes a while to actually get information. There is a hard drive in the device, so why isn’t the information cached there? And while I am wondering: why is the program description slowly scrolled in a separate window automatically every 5 seconds or so instead of allowing me to scroll manually at my own pace?
The EPG is optimized to show what is on a single channel (or up to 4 different channels) for the next few hours. This works well and could be improved by a mode that shows what is on all the different channels at the same time.
It is fairly easy to program a show for recording: a simple button press and after that a confirmation is all that is required. It is less easy to see what was actually programmed afterwards, you have to scroll through pages of individual timer settings which do not seem to have the show title set reliably.
The recording seems to consistently start 2 minutes late. The only way to work around this that I could find was to manually set the start time earlier.
Playback works fine some of the time. I had one show which started skiping about 25 minutes into the recording. There where short (1-5s) pauses in playback every minute or so. After 30 minutes the receiver froze and had to be rebooted to accept any input at all from the remote. This behavior was consistently repeatable.
I had recorded the same show off the same satellite feed using the ElGato EyeTV and everything was fine. The problem was clearly not with the feed. I suspect a hardware or software bug in the receiver.
The manufacturers website did not offer any helpful advice. There was a kind offer to call a premium-rate number for support, an offer which I politely declined, as I always do. The receiver was bought as an entertainment device. I do not find bugs to be entertaining, quite on the contrary. So I gave the device back and will spend my money on something else.
2 stars out of 5.
I purchased an Elgato EyeTV 310 which is a digital satellite tuner and personal video recorder for the Mac. It will decode DVB-S which is what most(*) digital TV and radio satellite feeds are. The feeds can be saved to the hard drive and time-shifted or edited and/or converted and burned to CD or DVD.
(*) Most are DVB-S. Most high-definition feeds are DVB-S2 (which uses MPEG-4 instead of MPEG-2 for compression) which the EyeTV 310 does not decode. If you want to receive HD satellite feeds, this is not the product for you.
The EyeTV 310 is a small box that has a connector for the satellite feed, power, and two Firewire 400 (IEEE-1394) ports. Plug it all in, install the software from CD, and get going … Except that when I did, nothing happened. The EyeTV did not find any channels.
I knew the satellite feed was good because it worked with a stand-alone receiver. I tried various settings, but nothing helped. So I contacted Elgato tech support using the website. Within less than a day, I had a knowledgeable, friendly reply. No boilerplate, no automated junk, a real human tech-support contact. I was pleased.
What the tech suggested did not work, so I made some screen shots and saved some log files, wrapped them up in a .zip archive and sent another email. Within a minute of sending the email, my message had been entered into the tracking system on the Elgato website. This time, I was amazed.
I though Elgato would fumble the ball on a same-day response, but I got an answer later that evening from my original support contact. No playing hot potato, the guy who knew the case kept it. The message was friendly and again very helpful. Someone clearly knows his stuff here!
The tech suggested that I try eliminating all the pieces of equipment starting at the LNB to find out what was causing the problem – he thought that despite the stand-alone receiver working the EyeTV was not getting a signal.
O.K., I will admit it: I was skeptical. After all, I had seen it work, right? But the next day, I sat down and did what I should have done from the start, I eliminated the possible causes for the error one by one.
Guess what? It turns out that I was using a bad cable. Swap the cable and the box works like a charm. At this point, I was ecstatic, and I let the tech know.
So how does the EyeTV perform? On a lowly Mac mini Core Duo with 1 GB RAM, the CPU utilization is just above idling when I watch a TV feed or listen to a radio feed. The picture quality is excellent, as you would expect from a digital feed. There is no discernible lag in frame rate, decompression artifacts, or other weirdness.
Most DVB-S feeds come with program information. In a view slightly resembling iCal, all the channels and programing are listed. A simple click on an entry brings up additional descriptions. To schedule a recording, a single button press is enough. There is nothing else to configure.
EyeTV also comes with a one year subscription to an EPG (electronic program guide) service which should list all feeds, even if they do not broadcast program information. I have not tried this because the Mac mini is offline.
Once a feed has been recorded, it becomes available for playback, editing, or archiving. If you happen to have Toast, EyeTV will pretty much automate burning a feed to DVD. That’s a nice touch.
There are some things the EyeTV software could do better: there seems to be no way to show all program entries of a certain type (say all movies or all documentaries) in the EPG view, for example. I would also have liked the level indicator to correctly show that the EyeTV was not getting a signal when I was troubleshooting. It would be nice to have more options in organizing the channel list.
But by and large, this is not just a good product, it is excellent and though much more expensive than a Windows solution well worth the money. I was (and still am) impressed by the support I got. Good support is hard and not cheap, but Elgato seems to go the extra proverbial mile to deliver it.
In order to run Microsoft Windows software on my Intel Mac, I use the fine software Parallels Desktop for Mac (referred to as “Parallels” from now on). It runs everything I have thrown at it up to now and it is getting beter and faster with each new release.
The only annoying technical limitation is that Direct X does not work, so modern games are out of the question. But who needs games on a work machine, right? 😀
There is a problem with Parallels, Inc. and the way they handle their overseas business, however: we are being treated as second rate, at best.
Let me explain: “Paralles” (the software) is not localized in a technical sense. Customers anywhere in the world get the same American English version of the software. This is no problem for me and it should not be for anyone because Parallels, Inc. makes no claim of language localization.
However, the activation key used to activate the software is different in the U.S. and elsewhere in the world. I have no idea why this is so, but I assume that it is because of some business problem this approach fixes. Again, I have no issues with this.
What I object to is that beta versions of the software, which Paralles, Inc. makes available months before a new release (again, a move that I applaud) require an activation key which must be a U.S. activation key. International keys do not work. International users must request a new demo key every 30 days until the system locks them out for requesting too many keys.
Do international customers have less of a need for new features? Have international users paid less than U.S. users to justify this treatment? Are international users challenged in some way when dealing with beta software?
But wait, it gets better: you also can not upgrade to the latest final version of the software until several days after the U.S. customers get to do so. And (as opposed to the beta version) Parallels will not tell you that this is so.
I downloaded the newest version (1986) right after it was released on 27-FEB-2007 because an email message from Parallels, Inc. urged me to. The new software simply rejected my activation key. So I contacted Parallels,Inc. support using the form on their website. I made it clear that I am a paying customer (I gave them my key) and requested assistance. I am still waiting for a reply today (05-MAR-2007).
A few days later Parallels, Inc. quietly published a different version of the software that is called “Parallels-Desktop-3186-Mac-uk-AQ” and only available using the built-in update function, it seems. This version installs and activates without a hitch. Unfortunately, I was not told about it by Parallels, Inc. like I was with the U.S. version and I could not find this version on the website.
All of this leads me to the conclusion that for some unfathomable reason, international customers are only second rate customers in the way Parallels, Inc. treats us. I can only hope that this is due to a flaw in the way the company handles it’s processes and not a deliberate decision.
I’d really like to hear from a representative of Parallels, Inc. on this issue, but – alas – I have not received a reply yet.
