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ianmarsh

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Everything posted by ianmarsh

  1. Hello everyone, Starting to think about diving again post-Covid... I currently own the original 24mp Sony A7 which I use in a Nauticam NA-A7 housing. The ONLY lenses I use with this camera is the Nikonos 15mm f2.8, and Nikonos 20mm f2.8, with the Nauticam adapter. I have a Nauticam 180 viewfinder. It is pretty much a digital Nikonos V Autofocus is disabled due to the lens used. On land I only used adapted Nikon Ai-S manual lenses. Given these constraints, and the fact I would have to move to a different housing, would there be any advantage upgrading to a newer Sony A7xx body with this scenario? Would the original 12 mp Sony A7S body be an "upgrade"? Anyone care to weigh in? Ian
  2. FWIW Looks like a really good one in Japan right now. "Reasonable" price https://www.ebay.com/itm/294017247101?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D4e29fddda76e41f59115ab789dd8fc63%26pid%3D100675%26rk%3D2%26rkt%3D15%26sd%3D184970534612%26itm%3D294017247101%26pmt%3D0%26noa%3D1%26pg%3D2380057%26brand%3DNikon&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3Abcc616ae-f3c4-11eb-aa08-2ade22e4bb78|parentrq%3A0842977d17b0a69dc2feb86cffe0a5ac|iid%3A1
  3. Hey Darth, (if that is your real name) Sorry, I just saw this. That was quite awhile ago, but if I remember, DHL charged something like $125 in "Brokerage Fees". Typically this is a $10 fee if you use Canada Post/ USPS, so I'm not sure what service DHL is providing. The other thing is that this gouging seems to be more related to DHL in the EU. I ran into a similar scenario ordering parts from Seacam in Austria and shipped via DHL. I wonder if it has to do with crossing borders, although that was supposed to be the point of the EU. On the other hand I recently bought some bike parts (worldwide shortage!) from a shop in Singapore, shipped to my door in 3 days by DHL, and there were no fees apart from taxes. Country of Origin for duty purposes was USA, so not sure if that is something to do with NAFTA, or whatever it is called now. Anyway, I think the best bet is to use only postal services, rather than couriers. Couriers all have a similar modus operandi of gouging with unspecified charges, Fedex being the worst domestically. FWIW, I do a lot on line, and while postal is slow, the mail always seems to end up on your doorstep.
  4. Having been a Scubapro fanboy since my 1972 Mk5/ balanced adjustable (which I still have and works great), I have stayed with the brand throughout. My “current” reg is a Mk15/G250 from the mid 90’s. Still functions like new after service, and I feel no need to stray... Well, I did a few years ago. I bought an Atomic SS1 stainless steel, which I took on one trip, and it sits neglected in a gear bag. It is for sale if anyone is interested. Too much bling for me. I retired my 90’s Scubapro Double Black stab jacket a few years ago and bought a Scubapro Hydros back mount. I love this piece of kit, and really appreciate the thought that went into the design. Scuba gear doesn’t really change very much. Any top of the line reg can be bought used for very little, and once serviced will be pretty much new again. ian
  5. Totally agree, Adam. I did toy with the idea of taking my D3S out of mothballs and finding a nice Subal housing for it. Then I gave my head a shake... But it is nice to think that with the march of computer technology, we might be able to remain satisfied with the platforms we have for much, much longer. I know for sure this would make my missus happier:)) ian
  6. I watched the segment with great interest, a thoughtful discussion by Adam and Alex as usual. I tried it out on a couple of files from 2012, taken with my trusty old D2X. 12.2 megapixel files which up-rezzed to 40 something megapixels. They looked really good and I saw no real artefacts. Alex discussed how this was a game changer, in that a lower resolution platform, such as a D300 could become relevant again. This is an exciting concept for sure, but it ignores the fact that resolution is not the only criterion for "progress" in camera design. I currently own a D850, previously D2X, D3, D3X, D800, D810 etc and the march of progress has been undeniable. Not only with respect to resolution, but more importantly, autofocus, and dynamic range of the sensor. These attributes are not part of the Super Resolution algorithm, and are probably much more important that raw resolution. Low light performance and diffraction may be other matters though. I think for photographers just starting out, this may represent a great way into the hobby; buying older gear and housing for a fraction of the price of 'bleeding edge' gear. It might also slow down the arms race to better and newer gear each time a new camera is introduced, if the main improvement is strictly resolution. However, I feel that the D850 is currently at the top of the heap all round. It is hard to imagine much more improvement coming the way of DSLR technology. I am happy to stick with what I've got, and likely will NOT replace this camera in the future. It really seems to be a near perfect tool for the endeavour. Mirrorless may be a completely different matter:)
  7. Focal Point in Colorado have closed permanently. Maybe this? No experience with them personally, but website looks promising https://www.pstechnik.de/services/lens-service Nothing quite like German optics:)
  8. I will give some hard won advice: Only consider 13mm RS lenses that are optically perfect. There is one on eBay right now in Japan that is a pretty good price. https://www.ebay.com/itm/NIKON-NIKONOS-RS-R-UW-AF-Fisheye-Nikkor-13mm-F-2-8-Japan-as-is-100110A/154123513210?hash=item23e27a2d7a:g:NBoAAOSwTmBffHUH Optical system Lens Glass is very clear only in a very small dust. (But of course it does not affect the photos.) It has no tiny fungus. There is very slight haze inside of the rear lens.(No impact when taking a photo) There is very slight balsam separation inside on the edge of the rear lens. Please purchase after checking the photo inside the lens. If you are concerned, please maintain it. I bought one of these years ago, and the "balsam separation" turned out to be a crack in the rear lens element probably from being dropped. Fortunately for me, Rene Auman had the element available for sale, and it was a simple matter of changing it out myself, a 5 minute job. It cost me 100 euro for the part, but it was worth many times that to me. If you are requesting pictures of the rear elements, have the vendor remove the rear bayonet filter. If the damage is on the filter, they are easily available, shared in common with the 16mm Nikon fisheye. Nowadays, there are essentially NO repair parts available, so you will be stuck with what you buy:( Ian
  9. I have a D6i mounted on my wrist and a Suunto Vyper mounted on the strobe arm. Both are paired to the same transmitter. I also have a SPG on a short hose bungee'd out of the way but accessible if the tank transmitter fails mid dive, which it has. I do my own "service" of both computers... very simple to do and the cost is only that of a CR2450 battery. Two small screws and you are in. Treat the O ring gently and it can definitely be re-used, just a whiff of O ring grease needed. The battery in the transmitter can also be changed, but requires a specific battery which Suunto sells with an O ring. These are available on eBay. The computer batteries are available at any pharmacy, and I always travel with spares, and a spare transmitter kit. A couple of screws, O ring grease ... Bob's Your Uncle. There are many detailed instructions on The Youtube. Ian
  10. I have gotten a few inquiries for the manual and schematic. I will repost these. Maybe Adam can enshrine them in a permanent place in the archives? nikonos 15mm service manual.pdf
  11. Agree with Tom, it's the same filter that came in a set with the 16mm fisheye. They are readily available on Ebay if you search under the 16mm Fisheye. https://www.ebay.com/itm/Nikon-L37C-Bayonet-Filter-AI-AF-Fisheye-Nikkor-16mm-f-2-8D-AI-Nikkor-15mm-F3-5S/273515796417?epid=1840600782&hash=item3faecfd7c1:g:ytgAAOSwB9Fbyf1y One of the ones (L37c) in the set is clear glass, and you can cut a small circle of Alex's Magic Filter and place it on the back of the glass. I attached mine with a TINY drop of lacquer at the 12 and 6 o'clock position and it works like, well, Magic:)
  12. Makes the Nikonos RS 13 conversion almost seem "cost effective":)))
  13. I agree with Interceptor... maybe it's a good thing. The cameras we have right now are awesome, and maybe chasing the latest/greatest is a fool's errand, especially given the cost of camera AND housing. Maybe money would be better spent elsewhere, especially post-Covid dollars? I think Covid has taught us all greater patience and tolerance. Maybe "tolerating" what we have is a good thing, (unless your business is selling cameras and housings). To me, the bigger question will be travel to photo destinations. Especially for the land-locked amongst us... ian
  14. That's the largest dome port cover I have ever seen at 1:54:))) What was the shark species? Beautiful work! ian
  15. You need a one inch ball mount, https://www.ulcs.com/index.php/products/universal-adapters
  16. Oops... Just noticed the post has been edited and the flooded gear is no longer listed:( ian
  17. Hi Pavel Hope you are well:) Could you post a few pictures of the flooded 13mm, especially the front and rear glass? Thanks ian
  18. Totally agree... peer review is the only valid way of validating claims and Biorxiv is not...
  19. I think Interceptor 121 may be correct... this might be a long process, but maybe something good will come of it. The world does generally seem to be coming together and maybe there are long term lessons we can learn for this, in many areas of human interaction. That said, and not trying to be unrealistic, but the SARS outbreak lead to rapid escalation of research activity, and bypassing of some regulations. (It's too bad we didn't learn long term lessons from that outbreak!).This is not without some risk, but people are pretty smart these days. I have confidence that the scientific community will get ahead of this. I saw this: https://www.biorxiv.org/content/10.1101/2020.03.11.987958v1 This type of "treatment" may serve as a bridge until a full-on vaccine is on the shelf. One of many areas of investigation:) Fingers washed and crossed!!
  20. This is the single most useful aggregation of factual information I have found so far: https://ourworldindata.org/coronavirus
  21. Boletus Sobering indeed.... I just heard a CBC program on the situation in Lombardy and other parts of Northern Italy. It sounds very dire. The head of the Italian society of critical care was interviewed. His comment was the only control measure that will have any real effect is "social distancing". Forget the masks until you are infected, and gloves are of no use at all....False sense of security and possibly makes things worse. Wash your hands, but most importantly stay away from close contact with unknown people and stay away from mass gatherings... Fingers crossed for the affected people in Italy, and a cautionary tale for the rest of the world. This is NOT the 'flu' or a 'bad cold', despite what conspiracy theorists will say. In the end, concern about cancelled basketball games and cancelled dive trips will seem banal. ian
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