Posts for: joer
Dec 27, 2015 22:18:18 #
JoAnneK01 wrote:
Nice time to party.
No doubt. That's what the holidays are about.
Dec 27, 2015 15:51:02 #
Soul Dr. wrote:
The article that joer posted above said that most lenses cannot match resolution of newer mega- pixel cameras. will
Quote from the article: "The vast majority of lenses in our database are capable of taking advantage of a 36MP sensor at some combination of aperture and focusing distance, even low cost kit lenses."
Dec 27, 2015 13:23:17 #
There are many opinions on lens quality and high resolution sensors. This one comes with the credibility of having tested hundreds of lenses (LenScore).
"When discussing the future of full frame sensors, it is often argued that lenses are not up to the task of resolving 36MP, let alone 54MP or 72MP. Having measured more than 135 full frame lenses, we feel confident in saying that this is not true. The vast majority of lenses in our database are capable of taking advantage of a 36MP sensor at some combination of aperture and focusing distance, even low cost kit lenses.
Obviously, working with a lens that can only make use of a sensor's potential under ideal conditions is not very desirable. So what about higher grade lenses? Let's have a closer look at our current number 1, the Zeiss Apo Distagon T* 1.4/55 Otus. Maximum resolving power is just a little bit under 100MP at an aperture of f/3.7, at f/1.4 it's still 79MP. This lens could make use of a 72MP full frame sensor wide open, and it would easily outresolve a 54MP sensor, as would most of the Canon and Nikon super tele primes.
Stopping down to f/4.0, the number of lenses that could make use of a 54MP full frame sensor increases significantly. It's safe to say that most current f/2.8 and f/4.0 constant aperture zoom lenses and almost all current f/1.4 and f/1.8 primes would - to some degree - profit from a 54MP sensor. However, less than two dozen lenses in our database could make full use of such a sensor. Thus, as full frame cameras go beyond 36MP, lenses have to become better. Fortunately, that is happening. The four Zeiss ZE/ZF.2 primes released since 2011 are clearly a step up from most previous lenses, as are some of the latest Sigma and Sony offerings.
In conclusion, one can say that full frame sensors are still far from outresolving high grade lenses. Based on our measurements, the reasonable maximum resolution for full frame sensors is probably somewhere around 100MP. Above that, lenses would have to be significantly better than the 55mm Otus. Such lenses would most likely be even more expensive than this outstanding but pricey Zeiss prime, putting them out of reach of most photographers. Size and weight would probably be an issue too, as all current top performers in the LenScore database are on the large and heavy side."
"When discussing the future of full frame sensors, it is often argued that lenses are not up to the task of resolving 36MP, let alone 54MP or 72MP. Having measured more than 135 full frame lenses, we feel confident in saying that this is not true. The vast majority of lenses in our database are capable of taking advantage of a 36MP sensor at some combination of aperture and focusing distance, even low cost kit lenses.
Obviously, working with a lens that can only make use of a sensor's potential under ideal conditions is not very desirable. So what about higher grade lenses? Let's have a closer look at our current number 1, the Zeiss Apo Distagon T* 1.4/55 Otus. Maximum resolving power is just a little bit under 100MP at an aperture of f/3.7, at f/1.4 it's still 79MP. This lens could make use of a 72MP full frame sensor wide open, and it would easily outresolve a 54MP sensor, as would most of the Canon and Nikon super tele primes.
Stopping down to f/4.0, the number of lenses that could make use of a 54MP full frame sensor increases significantly. It's safe to say that most current f/2.8 and f/4.0 constant aperture zoom lenses and almost all current f/1.4 and f/1.8 primes would - to some degree - profit from a 54MP sensor. However, less than two dozen lenses in our database could make full use of such a sensor. Thus, as full frame cameras go beyond 36MP, lenses have to become better. Fortunately, that is happening. The four Zeiss ZE/ZF.2 primes released since 2011 are clearly a step up from most previous lenses, as are some of the latest Sigma and Sony offerings.
In conclusion, one can say that full frame sensors are still far from outresolving high grade lenses. Based on our measurements, the reasonable maximum resolution for full frame sensors is probably somewhere around 100MP. Above that, lenses would have to be significantly better than the 55mm Otus. Such lenses would most likely be even more expensive than this outstanding but pricey Zeiss prime, putting them out of reach of most photographers. Size and weight would probably be an issue too, as all current top performers in the LenScore database are on the large and heavy side."
Dec 27, 2015 10:14:18 #
Erv wrote:
That is very cool Joe! and a nice shot. I have tried this a few times without a good turn out. I guess I have to keep trying.:):)
Thanks Erv.
This doesn't work for me all the time. The hair needs to be just right.
Dec 27, 2015 00:50:34 #
Dec 27, 2015 00:39:19 #
MT Shooter wrote:
Neither of N ikons 80-400mm lenses are compatible with TC's, even if they were, your D7000 will not AT with a lens/TC combo exceeding F6.3 maximum aperture.
I've used the 80-400G and TC14E II and at f11 in bright light it looks pretty good.
Dec 27, 2015 00:31:20 #
Just Dawn wrote:
I have a nikon dx format and want to buy a good, f... (show quote)
In my opinion a 50mm lens is far more useful on a DX camera.
Dec 27, 2015 00:28:09 #
lamiaceae wrote:
Hi Fellow Ugly Hedgehog'ers: br br Just so everyo... (show quote)
Be aware that at 4K resolution CS6 tool icons will be so small to be unusable.
You might want to keep what you currently have.
Dec 26, 2015 21:47:19 #
Objects of interest.
Dec 26, 2015 14:37:51 #
charles brown wrote:
Just read an interesting article published on the Outside Magazine web site. Predicted the demise of the DSLR, not total extinction, just the demise. Will post quotes from the article tomorrow. In the meantime just want to wish all a very Merry Christmas and hope that all your wishes come true.
What a surprise! :|
Some people can't image it. I'm certain that some thought the film camera would never be replaced.
Dec 26, 2015 12:13:48 #
Bridges wrote:
This is the Glade Creek Grist Mill in Babcock St. Park, West Virginia. Photographed by thousands, I had to take my shot. If anyone goes there, the cabins are great with kitchenettes, full bath, stone fireplace, and they even have a lot of cut wood right beside each cabin for the fireplace.
:thumbup:
Dec 26, 2015 07:01:44 #
Dec 26, 2015 07:01:08 #
Dec 26, 2015 07:00:46 #
Dec 26, 2015 07:00:13 #
Irvingite Charles wrote:
:thumbup: :thumbup:
Thanks for looking and the :thumbup: