Help With My Tamron 150-600 (Page 2): Theehmann; I think what your referring to when you ask about the focusing ring being able to move towards the front of the lens and back toward...

vineyardman Loc: Florida

Theehmann;
I think what your referring to when you ask about the focusing ring being able to move towards the front of the lens and back toward the camera is: when you move the ring forward and the “white ban appears” is just that, a Zooming lock. Say your wanting to Zoom on anything that will use your bird bath, being either 20’ or 50’ (depending on where your bird bath is) from your location, once you get the zoom set to where you want it, push the collar forward until the “White ban” shows. After that, you can’t zoom on anything at a different zoom setting until you slide the ring back toward the camera (the White ring will disappear).
The camera should focus on anything in which ever zoom range you choose.

PHRubin Loc: Nashville TN USA

The button that says Full or 10m - 2.2 m limits the focusing to that distance. It is used to help eliminate "hunting" in hard to focus situations.

theehmann

PHRubin wrote:

The button that says Full or 10m - 2.2 m limits the focusing to that distance. It is used to help eliminate "hunting" in hard to focus situations.

Thanks so much sir.

planepics Loc: St. Louis burbs, but originally Chicago burbs

I bought the G2 about last year in time for Oshkosh. It came with a whole bunch of goodies from B&H and used one of them...it was a focus target. Never used one before or fine-tuned a lens/camera combination before. Made a HUGE difference! So far I've been very pleased with it. I gave it a good workout at the airshow and got some really good shots :) I've accidentally hit the focus range button and/or auto/manual focus before and really missed some opportunities, but for the most part it worked out fine. Would you like to see an example? I just converted one from RAW SOOC and saved it as a JPG.

sscnxy

theehmann wrote:

Dear friends, br After shooting with my new lens y... (show quote)

I'd suggest downloading Tim Jackson's autofocus fine tuning chart for free. Just check out a Youtube video that mentions his chart. Those videos often have a link to download Tim Jackson's chart, which is very easy to use. With the chart, you can learn if your lens is front or back focusing at whatever focal length and shooting distance you're most interested in. Then, using the same chart, you can go into your camera's AF fine tuning menu and systematically run through a sequence of tuning adjustments to get practically perfect central focus at the focal length you're especially interested in.

theehmann

sscnxy wrote:

I'd suggest downloading Tim Jackson's autofocus fi... (show quote)

Great info. Thank you so much.

tkeller2242

Hi, you didn't specify the camera. You might want to consider adjusting the autofocus for the lens. Different cameras have different names. In the camera's menu there should be something like "AF Adjustment" or "AF Microadjustment". Just a small bit of tweaking can make a big difference. It might seem like a daunting task but it doesn't have to be. Check out gerlachnaturephoto.com/post/2018/05/16/af-microadjust-for-sharper-images

theehmann

tkeller2242 wrote:

Hi, you didn't specify the camera. You might want to consider adjusting the autofocus for the lens. Different cameras have different names. In the camera's menu there should be something like "AF Adjustment" or "AF Microadjustment". Just a small bit of tweaking can make a big difference. It might seem like a daunting task but it doesn't have to be. Check out gerlachnaturephoto.com/post/2018/05/16/af-microadjust-for-sharper-images

I have a Nikon D7200. Thanks do much for the link. I'll definitely check this out.

tkeller2242

Google Nikon 7200 AF Microadjusr and you'll find more info, articles and Youtube videos. Good luck
Ps I'm eagerly awaiting arrival of Canon 100-400 ii . First thing will be micoadjustment. Tom

theehmann

tkeller2242 wrote:

Google Nikon 7200 AF Microadjusr and you'll find more info, articles and Youtube videos. Good luck
Ps I'm eagerly awaiting arrival of Canon 100-400 ii . First thing will be micoadjustment. Tom

Thanks Tom and good luck with your new lens

Eagleholic

theehmann - you have gotten a lot of helpful suggestions & I have another. I am friends with a wonderful photographer named David Akoubian on FaceBook. Tamron hires him to lead field trips & give lectures on their lenses. He also has many YouTube videos that he has done with their different lenses. I would check him out.

theehmann

Eagleholic wrote:

theehmann - you have gotten a lot of helpful suggestions & I have another. I am friends with a wonderful photographer named David Akoubian on FaceBook. Tamron hires him to lead field trips & give lectures on their lenses. He also has many YouTube videos that he has done with their different lenses. I would check him out.

I will definitely do that. Thanks so much for your suggestion.

theehmann

theehmann wrote:

I will definitely do that. Thanks so much for your suggestion.

I just viewed David's videos. This is EXACTLY what I was looking for. Thank you again.

topcat Loc: Alameda, CA

Could be that the focus is not correct. Maybe it is focusing in front or behind the focus point. I had that problem, and it is easily corrected.