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Mark K

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Everything posted by Mark K

  1. Having gone thru all your wishes, I think A6000 is the camera of choice. Needless to say EM1 is the one, if cost is not a concern but Sony A6000 answers many questions older Nex shooter like me. As the lens side, the current 50 macro 2.8 Zeiss does a decent job and the wide angle options include the 10-18 zoom and Zeiss 12/2.8. I suggest to shoot both EM5 and A6000 to decide which system to go. Olympus undboutedly has the most complete lens system with an excellent camera. Sony plays a catchup game with this A6000....I personally tested in Sony's shop and found it focuses more or less the same as A99. More tests are needed. Two of my buddies bout A6000 and the fantastic Nauticam housings.
  2. Believe it or not, my Nex5r was no longer functioning after using Touit 12. I have to send the body back. Having Sony made Zeiss lenses like 24-70 f4, 55f1.8, 35f2.8, I can say Sony makes much better Zeiss lens in terms of build quality and mechanical performance. I also happened to have 10-18f4 which is great in many ways.
  3. I have been using Nex camers ever since its birth...so far having 6 bodies actively using. I brought Nex 5n and Nex 5r down under water, using an inexpensive housing from Meikon for Nex5n and affordable housing from 10Bar for Nex 5r. I have most of the available lenses for Nex mounts, ranging from kit lenses to 18-200 as zooms and also primes from both Sony and Zeiss. Having said that, it appears you do not have extensive underwater shooting experience. With some 300 logs, I am still struggling to take a good one. I learnt from here and other that the most important issue in having good image underwater is good buoyancy control. As for housing you can choose from 1. Inexpensive housings made in China under different names of Meikon, Meike, Polaroid etc etc. These housings selling at in incredible price, the price of a filter... Here is the link http://www.meikon.cc/products.asp?classid=&id=872 They are good for: being very affordable, good quality, proven waterproof up to 40M. However there are a number of drawbacks: 1. buttons not working under 19M, which was the greatest depth after I returned my older housings in exchange of newer designs. 2. Lack of zooming 3. Previously 67mm filter thread removed 4. Designed fault that the housings can be closed even with a spring button clamped inbetween, which lead to the flooding of my first 5n. 5. Very slow to market...currently the latest housings are for Nex6 which was discontinued recently. 2. Nauticam: if you can afford one, there is no doubt in both handling and quality and necessary accessories. To my knowledge, this is the only company providing A6000 housing at this moment. 3. 10Bar: I have been using this for my Nex5n. Very robust and inexpensive. However, the company does not produce any more Nex housings after Nex5t. 4. Ekelite: probably the best buy for the money. They manufacture big and huge transparent housings for all popular camera models at reasonable price. The drawback is the weight and bulkiness. As for lens, if you are not too serious about image quality, the 16-50 kit lens is an OK option. For your purpose, the 16-70 Zeiss zoom offers the best possible solution with good magnification rate, small size and incredible quality. With an addon close up filter lens like offers from Subsee or Inon, you can do good macros as well. I will never recommend a lens like 18-200 to be used underwater. One of the drawbacks is painfully slow AF. An alternative is the 18-105 F4. I actually bought this one but it does not fit my port......with the same size as 18-200. Generally we use prime lens for diving, say a dedicated macro lens like Sony 30/f3.5 or fisheye like Zeiss 12f2.8 2.
  4. I have a number of Nex cameras from Nex5, Nex5n, Nex3n, Nex5r and Nex6. I have briefly used EM5 and A6000. The focusing speed of A6000 is faster the EM5 and on par that of EM1. If you start from nothing, then EM1 is a better choice for better IBIS, better range of lenses available, and larger buffer in terms of number of RAW files taken. I cannot speak for the print image quality but A6000 has a larger sensor size, newer design should have an impact on IQ, especially those printed at large size. You can also look into A7 which is a full frame camera in the price range of EM1. The printed quality should be much much better
  5. I have a much smaller setup using 10Bar for Nex5r. The total weight including a bracket, housing, camera, dome port, two z240s, one video light of 2000Lum is around 7Kg. However, I can't imagine what this will go if I shoot caves....with dSLR with wide angle.. An alternative is using the full frame brother of Nex5, the A7. Nauticam has launched a housing for A7
  6. I bought five Meikon housings for me and my diving fellows last year. Great finish and extremely affordable. I flooded one of my Nex5n cameras but again that was only my own fault However, the buttons did not work below the depth of 19m, even after Meikon's replacement. The buttons kept dancing once you get deeper. So currently available reliable housing for A6000 came from Nauticam. If you plan to dive it using the kit lens 16-50, remember to buy the zooming kit as well. While diving, we usually use prime lenses, say super wide or fisheye or macro lenses. I have never found any usefulness of 18-200 underwater.
  7. Just bought these lenses. Onland they are great working primes but underwater I have doubt
  8. I am lucky to buy two Touit lenses just this month and I am not too late to find out the importance of SSM and also OS in Sony made lenses
  9. Thanks Placed an order for twin Touit lens offer from B&H but too late to tried them out this afternoon. These two lenses do not have in lens SSM motors so focusing is very noising and much less smoother than the Sony 35 f1.8 and Sony 10-18 UWA zoom.
  10. Been to two land trips with my A7r.....and I believe A7 is a better performer down under. Sometimes I just want to have better AF. That's why I also noticed the latest Nauticam A6000 housing. Afterall, my lens collection is more complete for smaller sensor A6000.
  11. A6000 does have a high flash sync. I believe that calls a dedicated converter to utilize this. EM1 is a higher rank camera with better RAW buffer size. A6000 has much higher pixel density The image quality from both are similar except at extrem ISO At low ISO, A6000 has better dynamic range at iso 50 At higher iso A6000 shows some advantage. Both AF system works fast Olympus, together with other M4/3 lens makers, form a very robust and high quality one. From wide to tele. Sony has started taking the lens system more seriously since 2013. At wide side, there is the option of Zeiss 12 f2.8, Sony 10-18 OSS. There is a shortage of macro lenses. Currently there are only two options Sony 30 f3.5 and Zeiss 50 f2.8.
  12. I have been using Nex5r in a 10Bar housing for one year. Well, this housing does not support 10-18 OSS F4 or I need very tricky way to attach the lens. Obviously Nauticam builds much better housing. I also has an A7r but the AF speed is too slow. It is very logical to wait for the newer macro Zeiss lens and for the housing... Current A7 housing from Nauticam does support A7s
  13. Thank you Mark Twain... When I start doing my research, a local dealer told me that I have to pay 1K just for the cabling. Apparently it is not. There is such an inexpensive flash cable connecting the hotshoe. The A7 does not focus as fast as my other full frame DSLRs like D800/5D3. I have all those essential macro/wide lenses for the Nikon/Canon but as for A7, I have to wait for the newer wide/macro lenses. One way to get around is to use LAEA2/LAEA4 adapter to use old Sony/Minolta lenses. However, Nauticam housing does have space to accommodate the adapter. I also have an A77 which I believe has image quality exactly same as your A65. Well if I shoot only in RAW, with two flash gun firing at ISO 50, I believe both have great quality.
  14. I went to Nauticam's website...and fail to find a system chart of all the necessary port/flash/cabling chart.
  15. Having a relative complete set of Minolta / Sony lenses, I will recommend you to have the Sony 50 and 100 macro lenses. Having said that, you should also probably look at newer lenses from Sigma and Tamron. The Sigma 105 macro has OS and HSM. Sigma 70mm macro was regarded once the sharpest lens on earth. Tamron 90mm macro VC was previously well known for its affordability and sharpness.
  16. JM nice pictures from Nauticam I have been using Nex cameras last year, buying 5n (flooded) followed by 5r. Also got 6 and 3n 5r is currently my camera at service underwater the 30mm macro is a good macro one, providing reasonably sharpness down under. I tried the old 18-55 and newer 16-50 lens but not much interested. Can be a flexible one. However, other prime lenses are great including 35 f1.8, 50 f1.8. The Sigma f2.8 lenses at 19mm, 30mm and 60mm are great too Upcoming Zeiss macro at 50 should not disappoint any one
  17. The writing speed of a card is crucial to D800 that my single file can be as large as 60Mb. So I got around by using CF only trying to buy one with fastest writing speed. As a budget user I found the Transcend 400x UDMA 7 64Gb version....with measured writing speed approaching 70MB/s. As for SD card, you need to buy those listed as writing >90 but I cam quite sure there should be a delay.
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