The faster the optical system (or F-stop) the more pronounced the coma can be. Kent Gittings
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bruce Dayton Sent: Saturday, January 05, 2002 6:40 PM To: Ed Mathews Subject: Re: 77 specular bokeh talk (again!) Ed, It's certainly very visible. This is an area where the FA*85 beats the 77 in my opinion. It produces nice, round highlights. I have thought long and hard about getting the 77 and seeing this makes me want to just keep and use my FA*85 (already paid for). I would be curious to know if this is consistent from sample to sample or is there some variance. Any other 77 owners noticed the highlights to be like Ed's sample here? Bruce Dayton Saturday, January 05, 2002, 2:26:12 PM, you wrote: EM> Just when you thought it was safe to go back in the water..... A week EM> or so ago there was some limited <g> discussion about the Nikon 105, EM> it's bokeh, and the 77 bokeh. I mentioned that the 77 yields nice EM> bokeh, with some football (American football) shaped highlights. Nobody EM> commented about that, and probably nobody understood what I meant. So I EM> thought I'd take a picture of my Christmas tree lights out of focus to EM> show you. EM> This is background bokeh, with the brightest lights about 7 feet away, EM> and the lens focused to about 3 feet. In this shot, the lens is at EM> F2.8. In other shots I took at smaller apertures, the highlights of EM> course get smaller, and the football shapes start to get more round. EM> It appears to me that the shape becomes more oblong closer to the edge, EM> and that they kind of look like they circle around the center axis. EM> Tell me what you think. EM> http://lightandsilver.com/Temp/77.htm EM> Thanks, EM> Ed - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org . ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
