The difference is in the map! The purple, blue and red remind me of the vampire movies of my youth, and the atmosphere of the sinister supernatural. Even now occasionally the appearance of Count Dracula and his minions on a late night movie will send a chill up my spine. Count Mandelbrot, vampire. Available for instant viewing or download at Blogger's http://maxitersfractalfollies.blogspot.com. fract419.gif { ; fract418.gif remapped ; blank ; calctime 0:40:06.33 ; created Sep 13, 2010 ; Fractint Version 2004 Patchlevel 9 reset=2004 type=formula formulafile=*.frm formulaname=BESSEL-1 center-mag=+2.06156991064704000/+2.10984844541724700/242566.8/1/-177.500\ 000000138328/-8.71726038575992845e-010 float=y maxiter=7200 inside=0 logmap=173 colors=00100100100100100100100200200200200200200300300300300300300400400\ 400400400400500500500500500500600600600600600600700700700700700700800800\ 800800800800900900900900900900A00A00A00A00A00A00B00B00B00B00B00B00C00C00\ C00C00C00C00D00E00F00G00I00J00K00L00M00N00P00Q00R00S00T00U00W00X00Y00Z00\ _00a00b00c00d00e00f00h00i00j00k00l00m00o00p00q00r00s00t00v00w00x00z01z02\ z03z04z06z07z08z09z0Az0Bz0Dz0Ez0Fz0Gz0Hz0Iz0Jz0Lz0Mz0Nz0Oz0Pz0Qz0Sz0Tz0U\ z0Vz1Wz1Xz1Xz1Yz1Zz1_z1_z1`z1az1bz1bz1cz1dz1ez1ez1fz1gz1hz1hz1iz1jz1kz1k\ z1lz1mz1nz1nz1oz1pz1qz1qz1rz1sz1tz1tz1uz1vz1wz1wz1xz1yz0zz3zz7zzBzzEzzIz\ zMzzPzzTzzXzz_zzczzgzzjzznzzrzzvzzszzozzkzzhzzdzz`zzYzzUzzQzzNzzJzzFzzCz\ z8zz4zz0zz0zz0yz0yz0xz0xz0wz0wz0vz0vz0uz0uz0tz0tz0sz0sz0rz0rz0qz0qz0pz0p\ z0oz0oz0nz0nz0mz0mz0lz0lz0kz0kz0jz0jz0iz0iz0hz0hz0gz0fz } frm:BESSEL-1 { c = z = pixel: z = sin(z) / z * pixel |z| <= 100 ;SOURCE: bessels.frm } Roger Alexander