I stand corrected. On Sat, Oct 4, 2014 at 12:10 PM, P.J. Alling <webstertwenty...@gmail.com> wrote: > That's not CA that's sensor bloom. The lens itself exhibits almost no CA. > Supposedly CMOS sensors have done away with blooming but I see it all the > time in lens reviews, refereed to as CA, because well, CMOS sensors did away > with bloom, but CA is almost always two color red/blue, bloom is purple or > just plain white. Now I'm going into this because I'm really tired of > seeing obvious sensor bloom in images and having it be miss identified as > chromatic aberration, they are not the same thing. CA is caused by a lens > defect, bloom can be exacerbated by having a high contrast lens with even a > very good sensor. Neither of those things is a defect. The issue of > removing the sensor bloom is another problem, I've never successfully been > able to do that. If it's there I just live with it. > > > On 10/4/2014 12:46 PM, Darren Addy wrote: >> >> Those are all wonderful shots and even better if the CA can be >> removed.The purple outline of the white bird really jumps out at me. >> >> On Sat, Oct 4, 2014 at 11:37 AM, P.J. Alling <webstertwenty...@gmail.com> >> wrote: >>> >>> Matrix Metering was what I used. >>> >>> >>> On 10/3/2014 11:14 PM, Jack Davis wrote: >>>> >>>> I've noticed, Paul, that in recent years you've had better luck reducing >>>> clipped whites. >>>> I agree that matrix metering would help. >>>> >>>> Jack >>>> >>>> ----- Original Message ----- >>>> From: "Paul Stenquist" <pnstenqu...@comcast.net> >>>> To: "PDML" <pdml@pdml.net> >>>> Sent: Friday, October 3, 2014 4:44:02 PM >>>> Subject: Re: PESO(s) I have but one Egret... >>>> >>>> Odd. I use the full matrix metering on both the k-5 and k-3 when >>>> shooting >>>> egrets, and I haven’t blown one out in recent years. Generally, white >>>> objects will slightly underexpose because a dumb meter considers them >>>> neutral. I’ve shot them both against a bright sky and against dark water >>>> and >>>> shrubs. No blow outs. I don’t believe I used exposure comp on any of the >>>> shots. I do shoot RAW and usually pull down highlights in conversion. >>>> >>>> Paul >>>> On Oct 3, 2014, at 7:20 PM, Jack Davis <jdavi...@comcast.net> wrote: >>>> >>>>> P.J. You don't indicate the focus metering. Could it have been other >>>>> than >>>>> spot? >>>>> >>>>> Jack >>>>> >>>>> ----- Original Message ----- >>>>> From: "P.J. Alling" <webstertwenty...@gmail.com> >>>>> To: "PDML" <pdml@pdml.net> >>>>> Sent: Friday, October 3, 2014 4:05:11 PM >>>>> Subject: PESO(s) I have but one Egret... >>>>> >>>>> But three views. I always blow out the highlights, even dialed in -2 >>>>> stops of exposure. >>>>> >>>>> The first two are about 1/2 to 2/3 frame crops. >>>>> >>>>> >>>>> https://dl.dropboxusercontent.com/u/1604247/PESO/PESO%20---%20fishin.html >>>>> >>>>> >>>>> https://dl.dropboxusercontent.com/u/1604247/PESO/PESO%20---%20caught.html >>>>> >>>>> The last is the full frame >>>>> >>>>> >>>>> >>>>> https://dl.dropboxusercontent.com/u/1604247/PESO/PESO%20---backtofishin.html >>>>> >>>>> Equipment: Pentax K-5II w/vmc Vivitar Series 1 70-210mm f2.8~4.0 >>>>> (Komine) >>>>> >>>>> As usual comments are welcome but may be totally ignored. >>>>> >>>>> -- >>>>> I don't want to achieve immortality through my work; I want to achieve >>>>> immortality through not dying. >>>>> -- Woody Allen >>>>> >>>>> >>>>> -- >>>>> PDML Pentax-Discuss Mail List >>>>> PDML@pdml.net >>>>> 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 >>>>> PDML@pdml.net >>>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>>> follow the directions. >>>> >>>> >>> >>> -- >>> I don't want to achieve immortality through my work; I want to achieve >>> immortality through not dying. >>> -- Woody Allen >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> PDML@pdml.net >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> >> >> > > > -- > I don't want to achieve immortality through my work; I want to achieve > immortality through not dying. > -- Woody Allen > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions.
-- Photographers must learn not to be ashamed to have their photographs look like photographs. ~ Alfred Stieglitz -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
