Pentax 55-300mm F4-5.8 - wide open?

01-30-2009, 02:23 AM	#1
gemini Senior Member Join Date: Jan 2009 Posts: 256	Pentax 55-300mm F4-5.8 - wide open? can you give me info about max wide open for Pentax 55-300mm f4-5.8? at 55mm => f4 at 100mm => ? at 150mm => ? at 200mm => ? at 250mm => ? at 300mm => f5.8 thanks

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