Remove character limit on title field when used as caption

If you enter a title that's longer than the title field allows, this error appears when you try to save the node:

PDOException: SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'field_inline_images_title' at row 1: INSERT INTO {field_data_field_inline_images} (entity_type, entity_id, revision_id, bundle, delta, language, field_inline_images_fid, field_inline_images_alt, field_inline_images_title) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8); Array ( [:db_insert_placeholder_0] => node [:db_insert_placeholder_1] => 5 [:db_insert_placeholder_2] => 5 [:db_insert_placeholder_3] => country_profile [:db_insert_placeholder_4] => 0 [:db_insert_placeholder_5] => und [:db_insert_placeholder_6] => 4 [:db_insert_placeholder_7] => [:db_insert_placeholder_8] => The first Habitat homeowner family in Medicine Hat, Alberta: Ximena Tejada is pictured with her children Yendri, 17, Esteban, 9, Jonathan, 12, and the family dog, Max. ) in field_sql_storage_field_storage_write() (line 424 of /var/www/habitat/dev/modules/field/modules/field_sql_storage/field_sql_storage.module).

Can we remove the character limit on the title field when it's being used as the caption, instead? (and perhaps also prevent it being used as an actual title attribute)