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lmwalker

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Everything posted by lmwalker

  1. lmwalker

    Scottish Highlands

    © mike walker

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  13. <p>I use both the Tamron 24-70/2.8 VC USD and the Canon 24-105/4 IS USM. The 24-105 is a good walk around lens, light and slightly longer reach for when F/2.8 isn't needed. I mostly wanted the 24-70/2.8 to shoot handheld and with indoor ambient lighting so the VC was a deciding factor for me. That and the price difference. While the Tamron isn't quite as sharp as the Canon 24-70 Mark II, it is very, very good. Which makes it really hard for a hobbyist like myself to justify the price difference between the Tamron and the Canon Mark II.</p> <p>Samples:<br /> Tamron:<br /> <a href="http://www.pbase.com/lmwalker/family_pictures_christmas_2014">http://www.pbase.com/lmwalker/family_pictures_christmas_2014</a><br /> <a href="http://www.pbase.com/lmwalker/family_pictures_layne_bday_6">http://www.pbase.com/lmwalker/family_pictures_layne_bday_6</a>:<br /> Canon:<br /> http://www.pbase.com/lmwalker/family_hawaii_07_2014</p>
  14. <p>I prefer to stick with Canon L glass when possible, but as a hobbyist it is difficult to justify the cost of some of Canon's newest Mark II releases. Specifically the 24-70/2.8L, 70-200/2.8L and 100-400/4.5-5.6L upgrades. I have the 24-105/4L IS, 70-200/2.8L IS (Mk I), 70-200/4L IS and the 28-300/3.5-5.6L IS. When the Mk IIs came out for the 24-70/2.8L and the 100-400/4.5-5.6L, I decided to jump ship and go with Tamron's SP line. I bought the SP 24-70/2.8, which has image stabilization where Canon's Mk II does not. I also bought the Tamron SP 150-600/5-6.3. Both are just over half the price of the equivalent Canon lenses. While the IQ for the SP line may not be technically quite as good as the latest Canon L models, it is extremely close. And the build quality is right up there as well. I have not used any Sigma lenses lately, but from the reviews I have read, Sigma have also stepped up their game with their Art and Sport lines. I don't think there is as much distance between Canon and Tamron and Sigma as there used to be, except in price. And as a hobbyist, I find it really hard to justify the huge price difference for such relatively minor improvements in quality.</p>
  15. <p>I have a 5DII with the 24-105 f/4 and an EM-1 with the 12-40 f/2.8. My impression is that the Olympus stabilization is at least equal to Canon's, but I have not performed any scientific tests to confirm. One thing to keep in mind is that the DOF at f/2.8 on M43 is approximately the same DOF as f/4 with full frame (or f/5.6 versus f/8), and so allows a shutter speed that is twice as fast for the same composition. Basically, the M43 image stabilization only has to work half as hard.</p>
  16. <p>I agree with Mr. Rammell on every point except DOF. I purchased my OM-D E-M1 for its smaller size and weight for travel photography, and I am extremely impressed with the camera in every respect. But for good DOF control and especially for portraiture, my 5D2 with 100mm f/2 or 70-200L IS f/2.8 lenses are still my go to kit.</p>
  17. <p>I rented the 100-400 for a trip to Kruger in 2010.</p> <p>http://www.pbase.com/lmwalker/travel_south_africa_kruger_national_park_2010</p> <p>The 100-400 is a great lens and I got excellent results. I thought about buying one, but figured a Mark II would be released fairly soon and so I rented the Mark I for that trip. When the Mark II was announced with the huge price increase, I decided to buy the Tamron 150-600 instead. I have not used the Tamron a lot yet, but I would say it is pretty comparable to the 100-400 Mark I, but with 50% more reach. I have not used a 100-400 Mark II, so I can't make a comparison to the Mark II.</p> <p>No problems with AF at f/6.3 on a 5DII with the Tamron. The Tamron is a bit heavy though. So is the 100-400 Mark I fully extended. Your arm will be tired by the end of the day with either lens. </p>
  18. <p>The E-M1 has a sleep option that is described in the manual as: "The camera will enter sleep (energy saving) mode if no operations are performed for the selected period. The camera can be reactivated by pressing the shutter button halfway."</p> <p align="LEFT">The E-M1 has a separate auto power off option as well. I believe that pressing the shutter button halfway also turns the camera back on, but I'm not certain on this.</p> <p align="LEFT">I have not used continuous AF very much, but my impression is that as most Internet reviews indicate, it is not in the same league as most DSLRs.</p> <p align="LEFT">I bought my E-M1 in December and I have not used it a lot as of yet. I principally purchased it to have a really good travel kit that is lighter than my 5DMkII + 5DMkI + lenses and accessories. I also purchased a LUMIX DMC-LX100 as my backup, so the total kit with lenses and accessories is less than a quarter of the weight of my DSLR kit. For travel photography (landscape, cityscape, architecture), both of these M43 cameras will give results comparable to my 5DMkII. For portraiture, sports and wildlife, IMHO, not so much.</p>
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