cannot get zenphoto to render images with .dng, .raw and .cr2 endings. I have ImageMagic installed. Any ideas on what to do? Its a fresh install with new database using latest Zenphoto 1.4.1.2

here is my phpinfo:
PHP Version 5.2.17

System Linux panda.zyma.com 2.6.18-338.19.1.el5.lve0.8.36 #1 SMP Wed Jul 27 13:20:06 EEST 2011 x86_64
Build Date Aug 4 2011 13:18:16
Configure Command './configure' '--enable-bcmath' '--enable-calendar' '--enable-dbase' '--enable-exif' '--enable-fastcgi' '--enable-ftp' '--enable-gd-native-ttf' '--enable-libxml' '--enable-magic-quotes' '--enable-mbstring' '--enable-pdo=shared' '--enable-soap' '--enable-sockets' '--enable-wddx' '--enable-zend-multibyte' '--enable-zip' '--prefix=/usr' '--with-bz2' '--with-curl=/opt/curlssl/' '--with-curlwrappers' '--with-freetype-dir=/usr' '--with-gd' '--with-gettext' '--with-imap=/opt/php_with_imap_client/' '--with-imap-ssl=/usr' '--with-jpeg-dir=/usr' '--with-kerberos' '--with-libdir=lib64' '--with-libexpat-dir=/usr' '--with-libxml-dir=/opt/xml2' '--with-libxml-dir=/opt/xml2/' '--with-mcrypt=/opt/libmcrypt/' '--with-mhash=/opt/mhash/' '--with-mime-magic' '--with-mm=/opt/mm/' '--with-mysql=/usr' '--with-mysql-sock=/var/lib/mysql/mysql.sock' '--with-mysqli=/usr/bin/mysql_config' '--with-openssl=/usr' '--with-openssl-dir=/usr' '--with-pcre-regex=/opt/pcre' '--with-pdo-mysql=shared' '--with-pdo-sqlite=shared' '--with-pgsql=/usr' '--with-pic' '--with-png-dir=/usr' '--with-pspell' '--with-sqlite=shared' '--with-tidy=/opt/tidy/' '--with-ttf' '--with-xmlrpc' '--with-xpm-dir=/usr' '--with-xsl=/opt/xslt/' '--with-zlib' '--with-zlib-dir=/usr'
Server API CGI/FastCGI
Virtual Directory Support disabled
Configuration File (php.ini) Path /usr/lib
Loaded Configuration File /usr/local/lib/php.ini
Scan this dir for additional .ini files (none)
additional .ini files parsed (none)
PHP API 20041225
PHP Extension 20060613
Zend Extension 220060519
Debug Build no
Thread Safety disabled
Zend Memory Manager enabled
IPv6 Support enabled
Registered PHP Streams compress.zlib, compress.bzip2, dict, ftp, ftps, gopher, http, https, imap, imaps, pop3, pop3s, rtsp, smtp, smtps, telnet, tftp, php, file, data, zip
Registered Stream Socket Transports tcp, udp, unix, udg, ssl, sslv3, sslv2, tls
Registered Stream Filters zlib.*, bzip2.*, convert.iconv.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed

any plugins that need to be enabled or other settings?
please help.

You say that you have ImageMagick installed, but do you have the Imagick PHP extension as well? They are two separate things. Zenphoto uses the Imagick extension, not ImageMagick directly.

Also, it's generally not a good idea to be uploading raw formats such as those. Processing those kinds of images will most likely bring your server to its knees. I would suggest to use smaller, converted images with Zenphoto. If you need to provide the raw formats to your users, I would link them in your theme from outside of Zenphoto so as to avoid processing them.

where can i find the imagemagic php extension?

Google is your friend: http://pecl.php.net/package/imagick
But unless your are managing the server yourself (what I doubt) your hos will have to install that on the server.