Thursday 20 April 2017

Eyefi & FlashAir wireless SD cards for camera

Eyefi is a technology that's been around for a while, that combines a regular SD memory card with a wireless chipset so that images that are being recorded onto the card by the camera can be transmitted wirelessly to another device. The cards can be purchased mainly on Amazon. The technology has also been licensed to Toshiba for their FlashAir series. Compared to Eyefi, the FlashAir cards have a somewhat lower range and less sophistication but can still be used for the same overall purpose. Both systems have a range measured in the tens of metres in any case, they don't have a big antenna or high power output, they are really just useful for transferring pictures between two devices that it would be hard to connect with a cable. This is especially applicable to the Nexus 5X since it doesn't have an SD card slot, and just about any phone with a MicroUSB socket can't be connected to another device like a camera with a regular USB cable - a special host adapter and cables would be required. (This technology is called USB OTG, and is not supported by all phones, however the Nexus 5X does support it, but at the moment I am not planning to experiment with it.)

My interest has shifted to the EyeFi technology since I stopped using the Ixus 135 camera that I bought a few years ago, which has built in Wifi that works through a mobile phone app that Canon provide to automatically transfer images. The Ixus 135 is a much less sophisticated camera than the Powershot SX260 that I currently use, but the SX260 doesn't have Wifi. So to get this capability, if I don't want to buy a new camera and don't want to go back to using the Ixus 135 then I have to look at one of these cards. The reason I want to use the SX260 is for superior low light performance or optical zoom etc which a camera phone can't really manage. Being able to transfer photos wirelessly to the phone in real time means I don't have to download them to a computer and then transfer them to the phone by Bluetooth or Google Drive.

The Toshiba card costs about $40-50 depending on the model so I will have a look at buying one when I have time.

Wednesday 19 April 2017

Canon MILC Cameras: EOS M Series

Canon has been slow to produce viable MILC cameras but their latest range has done a lot for their credibility in leveraging the benefits of this relatively new technology for interchangeable lens cameras. Briefly put, MILC is an abbreviation for Mirrorless Interchangeable Lens Camera and essentially it is a DSLR without the optical viewfinder and the mirror that enables you to look directly through the lens (TTL); instead the camera has a LCD viewfinder on the back like most compact cameras these days and so the main differentiation with a lot of P&S or "prosumer" cameras is the ability to change the lens and typically the use of a APS-C sensor (about the same size as lower end DSLRs). The main advantage a MILC has is that it can be made much smaller and lighter than a DSLR because of the space taken up by the mirror in the latter. MILC design is commonly referenced to a Japanese design standard called "Micro Four Thirds". The design standard for these cameras was revolutionised a few years ago when Sony brought out the first of the NEX series models. It was notable for some years that non-traditional SLR makers like Sony and Panasonic (and Olympus since they exited the DSLR market) were leading the way in MFT camera design and that those manufacturers with a long track record in film and high end DSLRs like Canon were relatively slow to innovate in MFT. Consequently the EOS M, Canon's first offering in the MFT sphere released in 2012, was a fairly tame offering at a price point that ensured it was not going to undercut the DSLR range. But both the M and the followup M2 model had poor sales, and Canon only redeemed themselves in the marketplace by massively discounting the M to less than half its original price, while the M2 didn't even make it to some of the major markets. Consequently Canon has had to make a much better effort in its latest round of models and the EOS M3 and M10 (only the former is officially available in Aust/NZ) are much better value for money for those who are looking for something that has the compactness of a high end P&S camera and the performance of a lower end DSLR with pricing to match. The M3 has now been replaced by the M6 model which is due to be released to the marketplace in NZ this month.

Whilst at present for financial reasons I can only dream of supplementing my highest quality compact camera (the middle range Powershot SX260, which is what I use for most of my day to day stuff nowadays when I want to carry a camera in a pocket and don't want to lug along the bulky EOS 600D), the M3 and especially the M10 are worth serious consideration as alternatives to both. The M3 is available in NZ for around $1000 with a twin-lens kit, while the landed price to privately import a M10 with a single lens would be around $600. However, the current cost of the M3 may well be lower end-of-line pricing as the M6 replacement is closer to the original EOS M being around $1500 with a single lens. The models share the same basic design but have many detail differences. In particular the M10 has a lower sensor resolution (18 vs 24 MP), is made mainly of plastic instead of metal, omits the flash/accessory hot shoe of the M3, weighs a little less and has generally lower shooting performance and capabilities. The M10 also relies more on the touchscreen for changing camera settings as it has fewer physical dials and controls on the camera body compared to the more expensive models. However, the touchscreen still gives access to full PASM shooting modes.

Having the accessory shoe on the M3 enables the use of an external flash as well as an eye level viewfinder (although still electronic) for people that prefer to compose shots in that way. I can appreciate the debate over the ergonomics of LCD vs eye level viewfinders, but for me the LCD screen is definitely the way to go; even with my years of SLR and rangefinder film camera experience, I have grown to prefer the LCD screens on most cameras these days. The only advantage a traditional viewfinder has over a LCD is in low light, and that's only possible when it is an optical design. These disappeared in compact cameras altogether a few years ago and their inclusion in DSLRs is the main reason for the inclusion of a mirror and the resulting added bulk. One issue with MFT cameras compared to a compact is that the interchangeable lenses are typically much bulkier than those fitted onto a compact; the larger lens is what gives the MFT its greater image quality (as with a DSLR) but understandably it takes up a lot more room. However on the M10, Canon have made the standard lens supplied with it collapsible so it is a lot smaller when the camera is turned off. This lens also has image stabilisation which naturally comes in quite useful, but the lens itself is only a 15-45 mm zoom range in an era where a lot of higher end compacts at a similar price can have a zoom range of as much as 40x (e.g. the Powershot SX720 which effectively replaced the SX260 at a higher price). The M10 does have an adjustable LCD screen rather than a fixed one - it isn't fully articulating but instead it can be tilted up by 180 degrees so selfies can still be taken (and it does have an automatic selfie mode when the screen is tilted right up). With the inbuilt Wifi connectivity it can download photos automatically to a Android or iOS phone with the apps Canon supplies and can also use these phones to obtain GPS coordinates to tag onto pictures.

Overall although the M10 is somewhat less capable than my EOS 600D in various respects, it would be a useful step up for me from the SX260 albeit at a somewhat bulkier size and with less zoom capability in the lens, although this is somewhat compensated for by the larger sensor size making it more feasible to crop and zoom pictures on the computer when needed. If I bought this camera I probably wouldn't bother with buying a second lens as these tend to be quite expensive as are most accessories for these cameras. It is notable that Canon continues to resist fitting a Micro USB port to this model as with the majority of its range, sticking with its backward-compatible Mini USB port (that Canon has customised with extra contacts for composite video playback) so we still won't get a camera that allows for an external battery or in-camera charging. This is among the most annoying features of Canon cameras in that you are limited to the range of batteries and chargers they supply, and pumping up the internal battery with an external USB battery the same way as we all can do with our cellphones these days is simply not possible. All one can do is buy a third party USB adapter for charging a battery externally to the camera using the same Micro USB power sources. This also limits the download options to a computer if I have forgotten to carry the less common Mini USB cable and the computer doesn't have a SD card slot, although the wifi capability makes up for this. So the main issue here is really the limitation on external power sources and this is really inexcusable in this day and age when it is clear Canon really wants to lock you into their proprietary batteries and chargers. There have been one or two models of Canon that did have a micro USB port and in camera charging via this port but Canon overall does not care for this capability and it is clearly not their intent to offer it to the vast majority of their customers even for a sophisticated alternative compact like the EOS M.

Overall at the price point the EOS M10 is offered at (when purchased through Amazon) it would be a worthwhile step up from the SX260 and probably a better alternative overall than the SX720 or its current equivalent (at a similar price) as a camera with interchangeable lenses and an APS-C sensor is always going to be a better option than a fixed lens compact with a small sensor. But there will inevitably be comparisons made with the Powershot G7x and the like which has a fixed and faster lens and more features but costs over $1000. So my view is that the M10 is quite good value for money if you are focused on bang for the buck and that has to be the way I look at it with my limited budget for camera gear even at the best of times, which in this case probably means next year rather than in 2017.

Monday 17 April 2017

Xubuntu 17.04, Kodi 17.1

Well the bedroom pc (AMD E350) had to be reinstalled because it needed more disk space for storing videos etc and I had assigned the larger disk entirely to Linux (500 GB) and only left a 320 GB partition for my stuff which was almost full. I reinstalled completely with the latest release of Xubuntu after having ensured all the stuff on the computer was backed up, and this time I gave Linux  50 GB partition on the 320 GB disk and ensured all of the 500 GB disk was assigned to /home. There is still the option of the unused part of the 320 GB disk being partitioned at a later date and used if necessary.

As this computer is wirelessly connected to the other computers on my home network, I have mapped a network share to mediapc and have set up grsync to sync in both directions so that whenever new content is added onto mediapc's /home/patrick/Media folder (which contains the Music and Video folders), it can be downlinked automatically to the E350 by running the appropriate Grsync session. And for those times when I have downloaded content from the Internet onto the E350 (which has happened various times), it can be uplinked to MediaPC by running another Grsync session. This provides for the backup of content on the E350 as well as ensuring I have access to all the content on MediaPC for local playback as the wireless network is a bit slow.

Kodi 17.1 has been installed as 16.x is not available for Zesty. However, I have experienced some issues with video playback stuttering and stalling with the Kodi 17 / Xubuntu 17 combination. Kodi 17 also introduces a new GUI and I have seen some navigational issues with an edition of it that I tested earlier this year. It will be interesting to see how I get along with Kodi 17 on this computer, as in the earlier installation of the E350 I deliberately installed Kodi 16 instead of 17 which had been released at that stage. So far it looks good. The stuttering was happening earlier and doesn't seem to be an issue at the moment and it may have well been because the system was busy rsyncing content down from mediapc at the time. A good thing about the new Kodi is that it can update its file lists in real time when you paste new stuff into a folder. This is relevant for me as I always use the Files areas rather than the library to find content to play.

UPDATE: I decided that 17.1 (which has fixed the navigational issues) was good enough to put onto the media PC so as a result I am now using it all the time. The overall interface is in some respects better than 16, and in some respects much the same. One of the nice features is that clicking the right mouse button instantly takes you to the home screen, and you can also customise the subareas of this screen to a minimum of just Music, Pictures and Videos. At the moment one of the main questions I have is that having chosen to configure Music just for files, I want it to be like Videos and just give me the subfolders straight away instead of showing a Files button and telling me my library is empty and that I need to populate it. I have not seen the video stuttering issues with 17.1 on the media PC that have occurred on the E350 so probably the later edition of Xubuntu is where the problems lie.

Sunday 16 April 2017

More Linux utilities: Pinta, Teamviewer, Spotify

Pinta is a basic graphics editor which is inspired by the Windows software Paint.net. It is simpler and easier to use than Gimp, and runs under Mono. 

Teamviewer has a Linux client available that I have used on Xubuntu.

Spotify also has a Linux client available that works well under Xubuntu. However, there are currently some bugs and issues with it, and development is not continuing at present due to a lack of resources and priorities, the key issue being lack of demand for the Linux edition.