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DJ Myford

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About DJ Myford

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    Greater London


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  • Joined Alamy
    21 Feb 2001

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  1. I've noticed that an off-brand battery for my 5D2 has a decidedly non-linear discharge curve, at least according to the camera meter. It tends to give less warning of running out than the official battery does. I suspect that may be due to the nature of the protection circuitry built into the battery pack. As for lithium batteries catching fire, there are two states to avoid: absolute maximum charge, and deep discharge. At absolute maximum charge the chemistry is inherently unstable as it is holding all the energy it can cope with, so most chargers are calibrated to stop charging before absolute maximum capacity is achieved. At the other end of the scale, if the battery voltage drops too low (deep discharge), elemental lithium can form within the cell. Pure lithium is highly reactive, and even a small amount can cause a fire. Battery packs contain protection circuitry designed to disconnect the battery before it can go into deep discharge. That is why it is recommended to store lithium batteries with about a 50% charge: it avoids the stress that is placed on the chemistry by a full charge, and minimises the risk of the battery approaching deep discharge while in storage. Apologies for the long post: sometimes I start to babble a bit. 🙄🤐
  2. I don't know about that particular battery, but in general lithium chemistry is age limited while nickel chemistry is cycle limited. Nickel batteries are good for a certain number of charge/discharge cycles, then start to fail. Lithium batteries don't mind being charged repeatedly, but start to lose capacity after a number of years.
  3. .... And gone again. This is like photographing the moon on a night with broken cloud.
  4. RF = Royalty Free: once the customer has purchased the image they can use it as many times as they like for no further payment. RM = Rights Managed: the customer pays for a specified use and has to pay again for any further uses. On occasion this distinction has become somewhat blurred with Alamy coming up with terms that effectively sell RM as RF.
  5. I'm no expert on that kind of image, but I strongly suspect that the more text you add to an image, the narrower its market becomes and the less likely it is to sell. Also, you cannot edit any images after uploading: you are expected to submit the finished article. Images can be replaced with a different version if you contact member services, but that is intended as a safety net to correct errors in processing and the like.
  6. If an image fails QC, all images awaiting QC will also be rejected, whether they were uploaded as one batch or twenty batches. So to be sure of avoiding that, you would have to wait for the first batch, of whatever size, to pass QC before uploading more.
  7. I've also seen a decline in views lately. My rolling CTR has gone up significantly, not because zooms are up but because views are down. Though in my case the number of images is probably too small for meaningful stats.
  8. f/8 is generally accepted as being the optimum aperture for sharpness in most cases. You can usually get away with using f/11, but beyond that diffraction softening starts to kick in.
  9. I wonder if those who get their DACS via Alamy will benefit from this in any way. I've had an image sale for German TV: don't know if that would count.
  10. Most contributors have had their Live News upload privileges revoked. If you haven't been selling news images regularly, this has probably happened to you. You can appeal this decision with Alamy, but so far it seems few have been successful.
  11. I was thinking more of the Vogon bureaucracy myself.
  12. I'm "The Maker", which is very appropriate as electronics enthusiasts are now referred to as Makers.
  13. Another month with a last-minute sale, so one for $6.49 gross. If it had been $$ I might have considered starting to upload again, but the trend is still downward.
  14. Open your Dashboard. Open the "Your Alamy portfolio page" tab. Click "Go to your Alamy portfolio page". If you haven't done the setup yet, click "Get help setting up your page" for instructions. Once set up, click "Share this portfolio" to get the URL (which you had the opportunity to set in the previous steps).
  15. Yes, the instructions stated that you had to choose the url you wanted when you first set up your port, as it would be set in stone from then onwards. But many have questioned just how useful the port feature is to attracting sales anyway.
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