{"id":439202,"date":"2025-08-13T11:06:56","date_gmt":"2025-08-13T11:06:56","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/facing-problem-between-lens-3-and-4-telephoto-system\/"},"modified":"2025-08-13T11:06:56","modified_gmt":"2025-08-13T11:06:56","slug":"facing-problem-between-lens-3-and-4-telephoto-system","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/facing-problem-between-lens-3-and-4-telephoto-system\/","title":{"rendered":"facing problem between lens 3 and 4 &#8211; telephoto system"},"content":{"rendered":"<p>&lt;p&gt;Hi all. I was reverse engineering a teleohoto lens system from a layout. I have made a design. But i need to improve it. I am mostly facing problem between lens 3 and 4. What change should i make to my design to achieve a similar design? I am attaching the screen shot b<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/08\/13-08-2025-1755083111-Screenshot 2025-08-12 140539.png\" alt=\"\" width=\"889\" height=\"541\" \/>elow of what i need and my reference.&nbsp;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/08\/13-08-2025-1755083093-ref.png\" alt=\"\" width=\"724\" height=\"397\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-439202","topic","type-topic","status-publish","hentry","topic-tag-design-optimization","topic-tag-help-me-2","topic-tag-lens-1","topic-tag-optics","topic-tag-opticstudio"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27816"],"_bbp_topic_id":["439202"],"_bbp_subscription":["574626","50911"],"_bbp_author_ip":["141.35.40.69"],"_bbp_last_reply_id":["439515"],"_bbp_last_active_id":["439515"],"_bbp_last_active_time":["2025-08-18 08:03:44"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["574626","50911"],"_btv_view_count":["108"],"_bbp_topic_status":["unanswered"]},"test":"jithinprasad17gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/439202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/439202\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=439202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}