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Oskar@RetraUWT

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Everything posted by Oskar@RetraUWT

  1. Both flashguns will achieve the same sustained fps because the recycle speed is the same. The key word is "sustained". If you need this information it is available from recycle time: 1fps = power/recycle time Please note that power in the tech-spec is relative to the available power output of the flashgun. 80% power is not the same on the Pro and Prime versions in terms of actual light output. By "flashes in a row" I meant a very quick sequence, a short burst for which there is no time to really recharge the capacitors. Usually these are action shots that only last for 1 second or less. During that 1 second of action the Pro versions have the ability to light up more images at the same exposure because of their larger capacitors.
  2. The Pro version has larger capacitors and delivers more energy but if you set both flashguns to give the same exposure they have the same battery consumption. Basically if you used the Pro version up to about 50% power you would have the performance of the Prime in terms of light output and energy consumption. The added benefit of the Pro (due to larger capacitors) is that you can make more flashes in a row which I explained earlier with the buckets of water analogy.
  3. Correct. The pilot light is also weaker on the Prime versions, at 50% power on the Pro version you get about the same output on the pilot light as on the Prime at 100%. It's meant for both types of eneloops as they have a similar voltage drop when discharging.
  4. Both flashguns have same recycle speed. The Pro versions have larger capacitors which is why at full power they will give out more light than the Prime version. Because more energy is released it will take more time to refill the larger capacitors. Due to larger capacitors the Pro version is able to produce more equivalent power flashes in a row. Imagine a bucket of water, the Prime version is made from two buckets of water and would be able to fill 20 glasses whereas the Pro version can hold 3 buckets and would be able to fill 30 glasses. It's not possible to give recycle time in energy/second because the charging curve is not linear and this value is always changing. It's similar to electric cars and their batteries which charge very fast to about 70-80% capacity and slowly reach the last 20-30%.
  5. Hi Guy, there is no firmware update for the Original Retra Flash regarding the Additional battery compartment, you would still need to use them with the hardware modification. A different Mounting module is needed for the new flashguns. The old one fits but leaves a dark spot in the center of the snoot beam. Here you can get them: https://www.retra-uwt.com/collections/shop/products/mounting-module-for-retra-flash It's not possible to update the pilot light on the Original Retra Flash. Thank you @TimG for sharing your story about the leakage. One practical advice I have for everyone using the new flashguns (PRO, Prime, Pro X, Prime X) with the built-in leakage detector is that you should always have your flashgun turned on when you submerge it in water, especially when you first submerge it. The leakage detector works well but it works only if the flashgun is turned on. Early detection usually prevents extensive damage.
  6. Here is the news article from 2018 when we announced support for the Z-330: https://wetpixel.com/articles/retra-announces-support-for-lsd-with-inon-z330-strobe
  7. I think it's leftover from the Z-240 days where the pilot light was a true eccentric pilot light that was not ideal for snooting. With the Z-330 they have tilted the pilot light inward which now lights up in the center of the LSD optical tube. Attached is an image from Inon's website explaining the improvement.
  8. We stopped making the LSD bag about 3 years ago. There was not enough interest for this item since most photographers make use of their existing carrying solutions, mainly the diving pockets, or they attach more ropes and clips to the Optical tube.
  9. Orders for the Retra Flash will be open very soon. We have been planning something special for the 10 year anniversary...
  10. Thank you Tim The App Store and Google Play store need some time to update the app on your device. Basically you needed to do the reloading procedure because the Retra UWT App on your device was still the previous version and it didn't have the new firmware inside. You will be able to go through the procedure again in a day or two because we just solved a nasty bug that could result in unwanted triggers when using fully charged batteries with the Supercharger in TTL mode. Firmware version 3.12 will be available in a couple days, it's just going through the verification process...
  11. Hi Tom, we have updated the design of the E-Opto converter and it now features a rotating insert that fits the standard fiber optic plug. This new feature removes all stress from the cable and in case you need to exchange the cable it is done easily without any tools. The new design fits all existing E-Opto converters, please send me an email when you can. Thank you
  12. If they were serviced by us in 2020 or 2019 they have for sure been updated and the problem is solved.
  13. Unfortunately the Original Retra Flash does not have any option to update firmware outside of our workshop but this can be solved if you send the product to us for a firmware update. The pilot light output of the Prime/PRO is substantially improved for snooting and makes the whole process of positioning and aiming much easier. If a short recycle time is needed the Supercharger is available. For reference please take a look at the macro focused review of the Retra Flash PRO by Mike Bartick: http://www.divephotoguide.com/underwater-photography-special-features/article/macro-critters-anilao-philippines-retra-flash-pro
  14. You're welcome. Please note that the Original Retra Flash has a narrower flash beam and therefore less power is used for snooting. With the Prime/PRO the flash beam is considerably wider and more evenely spread (ideal for wide angle) but this also means that for snooting a higher power level is used to achieve the same result as with with Original. In any case the new Mounting module will provide much better light output and I guess you already noticed that the pilot light is much brighter with the new models.
  15. Hi Kevin The Mounting module for the Original Retra Flash does not work well with the Prime/PRO models due to wider beam spread and lamp shape. Please try with the Mounting module that was made especially for the PRO/Prime models. Please remember that you need to change the diffuser (it comes supplied with the new Mounting module) because the diffuser that was supplied for the Original Retra Flash will not work well for the Prime/PRO. We've had a few cases where photographers used the old diffuser and the results were not as they should have been. The difference between using the old Mounting module/diffuser and the new set is substantial.
  16. We got a lot of questions about the beam angle of the Retra Flash Prime/PRO with the new Reflector. Because every manufacturer measures the beam angle in a different way we made a quick experiment. All flashguns are positioned at 50cm (20 inches) from a white wall and shot at normal exposure in the center of the beam. The yellow circle is marked at approximately 90ยบ angle of coverage.
  17. Hi We have just released a firmware update (2.5) for the Retra Flash PRO/Prime which includes improvements of Smart SL, HSS, BATT/TEST and U2 modes including an updated user manual. The update is done easily with our App, available for iOS and Android devices. Just download the app and follow the instruction for connecting your flashgun to your device. For Apple devices: https://apps.apple.com/app/id1472741374 For Android devices: https://play.google.com/store/apps/details?id=gm5.solutions.retra_flash&hl=en If you need help with the install please write to: develop@retra-uwt.com
  18. I just want to add that complete technical specifications are available on our website at the bottom of this page: https://www.retra-uwt.com/pages/retra-flash Here you will also find information about the battery life at half power, dimensions, weight, etc.
  19. Thank you for letting us know, there is in fact an error. This information was not updated in the public user manual. We will amend it shortly. Meanwhile please find attached a screenshot of the information.
  20. Hi, thank you for the feedback. We update the user manual as we get more feedback from photographers reading it or as we add new features. The weight of the flashguns (in water) is already indicated in the "basic information" section of the user manual. We will consider adding more practical tech-spec in there for easier access. Currently the long tech-spec are listed on our website. U1 and U2 can be set independently of one another and all advanced features can be set to each position individually. There is currently a bug in the firmware that resets the U2 position when the flashgun is turned off - it defaults U2 position to "Smart SL" mode. U1 position works normally and saves the setting that was assigned in the app. We will release a firmware update to amend this bug and improve on other things in the coming weeks. I know that TRT have support for HSS and that it works with our flashguns but I don't know the details and which cameras are compatible. Better ask TRT directly about compatibility.
  21. It means the camera is emitting a TTL signal with pre-flashes instead of a single flash pulse - thats' why it works in Smart SL mode. In Smart SL mode the Retra Flash will automatically detect the pre-flashes and ignore them, so the photographers will be able to adjust with manual power settings. The reason that it does not work above 37,5% power in ON mode is because the camera is emitting two flashes for a single exposure. After you get above a certain power level it will not be able to give any more power for two consecutive flashes. It's a very clear symptom that you should switch to Smart SL or change the camera settings if they allow setting for manual exposure. The complete user manual for our flashguns is available from our App called "Retra UWT", ready to download for free on Google Play and the App store. In the app you will find the google translate option to read the user manual in your native language. From the app you will also be able to access advanced user settings and other important information regarding your flashguns as well as making mandatory firmware updates when they become available. Please note that the user manuals and advanced user setting of the flashgun are always available inside our app without any internet connection. Even if you are somewhere far away on a boat you can still get all the information without having to access the internet. The connection with the flashgun is made via bluetooth which also does not require any internet connection.
  22. Hi, where have you read this? -- In 2021 it will be 10 years since the Retra UWT company was founded and throughout this time we have always serviced and repaired all of our products regardless of age. If you have our product and write us an email to have it repaired or serviced we always do it, promptly, without exception. There were some indications about potential reliability issues in this thread and from knowing exactly how our flashguns perform in the field and the defects, I can say that any doubts regarding the reliability of the new Retra Flash Prime/PRO are largely unfounded. The new flashguns are a continuation of the Original model and naturally we have taken all the experience into improving the new models and advancing the technology. I think that we are currently producing some of the most reliable flashguns on the market.
  23. As Chris mentioned the design of the flashtube plays a major role in how light is distributed and the power output. How the flashguns perform in wide angle situations can be seen here: https://www.retra-uwt.com/pages/flashgun-light-comparison In macro situations the differences in light beam spread are same but come out less visible (especially on subjects that are very 3D) because the light beam is compressed onto a small area. If we measure the light beam of the Z-240 coming out of the LSD Ultimate snoot, the uniformity of the beam is considerably less than with the Retra Flash PRO. Although in macro photography this is less of an issue. When comparing both these flashguns for snooting with the LSD Ultimate or a homemade DIY snoot the biggest difference worth noting is the placement of the pilot light. Having a central pilot light being a much better experience when positioning the light.
  24. Roughly speaking somewhere around 6-25% power should be used for those settings depending on the mask you are using, actual distance from the subject, subject color, etc. The LSD Ultimate snoot has a focus distance of about 175mm in water. Moving the snoot farther will give a softer edge with even light distribution but when the snoot is positioned too close it will reduce the light output and a dark spot will form in the center. See image below. The square mask is great for finding the focus distance because the corners can be clearly seen as sharp when the LSD is in focus. Please note that smaller apertures on the mask also reduce the light output. The LSD Ultimate snoot for the Original Retra Flash has the same style bayonet mount and it can be mounted to the new Retra Flash PRO/Prime but optically it is not compatible and makes the effect above even worse. The difference is in the length and the diffuser: the Mounting module for the new Retra Flash is about 43mm long, for the Original Retra Flash it was about 33mm.
  25. After the ready light the flashgun is fired at 100%.
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