How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Russell H. Your Own Question

Russell H.
Russell H., Technician
Category: Digital Cameras
Satisfied Customers: 645
Experience:  Working with digital cameras & questions for nearly 8 years.
13568747
Type Your Digital Cameras Question Here...
Russell H. is online now

I have just bought a used Canon EF 100 x 400 zoom lens, I

Customer Question

I have just bought a used Canon EF 100 x 400 zoom lens, I have seen photographs on line of a circular ring which appears to encircle the lens, however I don't know what it's called.
I also wand a lens pod but cant seem to find one long enough. Can you kindly help.
Submitted: 2 months ago.
Category: Digital Cameras
Expert:  Russell H. replied 2 months ago.

Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.

I need to ask, before giving you advice and information:
By "lens pod," do you mean a lens-mount extender, a cylindrical standoff to increase focal length from a given lens?

The circular ring in question - does it have any markings on it, or directly adjacent to it if all it has is a tick-mark or reference mark on one side? if so, what are those markings? they can reveal the nature of the ring.

What Customers are Saying:

 
 
 
  • My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed. One Happy Customer
< Previous | Next >
  • My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed. One Happy Customer
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • RUSSTING

    RUSSTING

    Technician

    Satisfied Customers:

    496
    30 years as a TV station tech gives me a unique understanding of digital camera operation and repair.
< Last | Next >
  • http://ww2.justanswer.com/uploads/RU/RUSSTING/2012-1-19_1301_DSC08705a.64x64.JPG RUSSTING's Avatar

    RUSSTING

    Technician

    Satisfied Customers:

    496
    30 years as a TV station tech gives me a unique understanding of digital camera operation and repair.
  • http://ww2.justanswer.com/uploads/RE/Readyrmca/2011-6-24_205114_38136130160763446716587523677594964494321n.64x64.jpg Readyrmca's Avatar

    Readyrmca

    Technician

    Satisfied Customers:

    185
    Over 1000 Camera and Video Accepts!!!!
  • http://ww2.justanswer.com/uploads/DI/dimmusacio/2012-1-26_194857_JA2.64x64.jpg Freddy M.'s Avatar

    Freddy M.

    IT Technician

    Satisfied Customers:

    70
    Years of experience.
  • http://ww2.justanswer.com/uploads/hsroy79/2010-08-08_111707_himadri.jpg hsroy79's Avatar

    hsroy79

    Other

    Satisfied Customers:

    37
    Camra Technician
  • http://ww2.justanswer.com/uploads/EN/Engineer1010/2012-6-9_132423_jaj12a.64x64.jpg Engineer1010's Avatar

    Engineer1010

    Camera Expert

    Satisfied Customers:

    19
    MS Electrical Engg.
  • http://ww2.justanswer.com/uploads/RI/RichieMe/2013-10-21_9435_1891752088969658025993880564n.64x64.jpg Richard's Avatar

    Richard

    Camera Repair

    Satisfied Customers:

    337
    Camera Repairman
  • http://ww2.justanswer.com/uploads/RJ/rjriggins/2015-1-14_16249_ick.64x64.jpg Rick's Avatar

    Rick

    Technician

    Satisfied Customers:

    181
    I'm a photographic equipment technician with over 25 years in the business
 
 
 

Related Digital Cameras Questions