Also, I believe that a 16mp aps-c sensor extrapolates to a 36mp full frame sensor. Correct me if I am wrong, but don't the d800 and k-5 have similar pixel pitch? Yep. 4.8. So clearly getting to 3.9 (d7100) is much better for moire. That also provides a full frame sensor with over 50mp of resolution. That is impressive. Good luck resolving 50mp with full frame lenses though!
On Tue, Jul 16, 2013 at 4:59 PM, Zos Xavius <[email protected]> wrote: > From the pictures I have seen its a non issue on the D7100. I'm sure > it can be induced though. It's the nature of the bayer pattern. The > Foveon avoids it because there is no interpolation. The Trans-X avoids > it because IMHO it is sacrificing fine detail due to the way the > sensor is laid out and the resulting image is interpolated. Look at > the 5d mk2 comparison at dpreview and compare to the x-pro and k-5 > iis. The k-5 is neck and neck with the 5dmk2 which has an AA filter. > The x-pro doesn't come close to either, but the resulting image looks > very sharp and gives the illusion of greater detail. This is my > opinion, but I compared these cameras for a very long time looking at > different parts of the scene and came to the conclusion that the k-5 > iis can compete with 20mp full frame. I eagerly await a 24mp aps-c > sensor from pentax. Too bad most of my glass will be likely > outresolved. Especially my newer DA zooms. I expect some of my older > glass to hold up fairly well though. Primes especially. > > I believe that quite a few MF cameras had removable AA filters. The > sigma SLRs have a glass piece in front of the mirror box that you can > remove for IR photography. Kind of cool actually. The nature of AA > filters probably requires them to be sandwiched on the sensor. I don't > know what is more reflective honestly. I bet the D800 without the AA > filter has a pretty shiny sensor too. There is quite a bit of metal in > between the actual photo receptors along with wiring that is actually > in front of them as well. Which is why BSI is all the rage in small > sensors now. All the glass and microlenses in front of the sensor are > probably fairly reflective as well. Its probably why the AA filters > are covered with multiple layers of coatings. > > On Tue, Jul 16, 2013 at 4:27 PM, Bruce Walker <[email protected]> wrote: >> Apparently _very_ difficult. The Bayer filter is part of a sensor >> sandwich. It's not like something that could be flipped down into >> place. >> >> Word is it's also a non-issue up around 24 megapixels. I don't believe >> anyone's seen moire in the Nikon body and they don't offer AA as an >> option. >> >> On Tue, Jul 16, 2013 at 4:13 PM, Bipin Gupta <[email protected]> wrote: >>> How difficult would it be to make a Sensor with removable Anti Aliasing >>> Filter? >>> Definitely a preferred choice along with a 24 MP APS-C Sensor. >>> This would greatly help in photo situations where moire is not a >>> concern, but picture sharpness is important say for macro shots. >>> One could then use some of the finer Legacy Lenses without having >>> light bouncing of the Anti Aliasing filter and causing internal >>> reflections in the lens. >>> One could than add back the AA Filter when a modern Digital Lens is >>> mounted on the camera. >>> Regards. >>> Bipin - from that far away enchanting land. >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> >> >> >> -- >> -bmw >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
