Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-05-2009, 09:06 AM   #1
New Member




Join Date: Sep 2009
Posts: 4
ADVICE Needed re F 35-70mm lens

I have been out of photography for a long time, until I recently retired.
I have experience with only a few lenses.
I just got the above F 35-70mm lens on E-bay.

I have 2 questions

A. biggest question is re, the "Macro" / "close-up" function.
The Zoom ring turns very smoothly, but ends when it gets to the green "Macro" part; it does not go into the green Macro part.
I do not notice anything like a change to Macro or close-up, unless it means that the fact that it reached 70mm IS the Macro function.

I looked at the lense reviews for this lens, and found in the 6th review (dated 8/5/08) the following statement:
"shifting into macro (which should, more accurately be termed "close-up"), can be a little sticky and cumbersome. Try this lens and you'll see what I mean. That said, the close-up abilities of this lens are one of it's best attributes."

I have tried to gently:
1. twist the zoom ring into the green Macro section;
2. push the zoom ring into the green Macro section; and
3. pull the zoom ring into the green Macro section.

I have tried this at both 70mm & 35mm.

I have tried this with the aperture ring on both "A" and several f stops.

Suggestions ?

B also, the aperture ring is hard to turn (significantly harder to turn than any other lens I have used).
- Is this normal for this lens ?
- Is a cleaning likely to fix it ?
- If I don't fix this, does my difficulty in turning the aperture ring mean that my camera is also probably having to work very hard to change the aperture ?

thanks in advance !

09-05-2009, 09:46 PM   #2
Site Supporter




Join Date: Mar 2008
Location: North Carolina
Photos: Gallery
Posts: 469
Sounds like something is wrong witht the lens, maybe you should return it.

I have this lens and just checked it. It should click right over into the macro section, and the lens barrel should start to extend back out for the macro focusing. The aperture ring is a little stiff on mine too, but it stays on "A" most of the time. If you're used to shooting with older lenses, like the m or k series, the aperature ring on the F lenses is not as smooth, at least in my experience.

Hope this helps.
09-05-2009, 11:03 PM   #3
Veteran Member
jct us101's Avatar

Join Date: Jun 2008
Location: Rohnert Park, CA
Posts: 3,695
You have to click it over to the macro setting. Just push it until it goes into it, mine had the same problem.
09-06-2009, 12:17 AM   #4
Pentaxian




Join Date: Feb 2009
Location: Alameda, CA
Posts: 3,194
QuoteOriginally posted by Flarshots Quote
A. biggest question is re, the "Macro" / "close-up" function.
The Zoom ring turns very smoothly, but ends when it gets to the green "Macro" part; it does not go into the green Macro part.
I do not notice anything like a change to Macro or close-up, unless it means that the fact that it reached 70mm IS the Macro function.
On my lens, there is a detent at 70mm. I have to twist the zoom ring harder, but not excessively hard, to bring it into and out of 'macro' setting.

QuoteOriginally posted by Flarshots Quote
I have tried this at both 70mm & 35mm.

I have tried this with the aperture ring on both "A" and several f stops.
The 'macro' setting should have nothing to do with the aperture ring.

I'm confused that you tried it "at both 70mm & 35mm." The 'macro' setting is next to 70mm setting. How can you try at 35mm?

QuoteOriginally posted by Flarshots Quote
B also, the aperture ring is hard to turn (significantly harder to turn than any other lens I have used).
- Is this normal for this lens ?
- Is a cleaning likely to fix it ?
- If I don't fix this, does my difficulty in turning the aperture ring mean that my camera is also probably having to work very hard to change the aperture ?
On my lens, the aperture ring turns normally. It is not particularly harder or easier than other lenses.

If you have disassembled lenses before, it's probably easy to fix it yourself. But if you haven't done it, leave it alone if you can. The lens will stay at A setting most of the time anyway.

This does not mean the camera has to work harder to change the aperture. You can try activating the aperture lever at the rear of the lens to see how easy/hard it is to change the aperture (set the aperture ring at A).

The photo of the ruler below is taken with the lens in question at the shortest focus distance (about 8" from the front of the lens).

Attached Images
View Picture EXIF
PENTAX K10D  Photo 
View Picture EXIF
PENTAX K10D  Photo 
09-06-2009, 06:58 PM   #5
New Member




Join Date: Sep 2009
Posts: 4
Original Poster
Grateful reply follows below:

Thank you all !

You were correct (no surprise to you, I'm sure).

I had called the Pentax Imaging website "help chat" before I wrote to Pentax Forums for help.

I got confused as their "chatter" led me over hill & dale, telling me to try different settings on the zoom ring, aperture ring, & focus ring. I didn't want to risk breaking a lens I's just bought, so I kept asking him if I was possibly supposed to push, pull, or click something into place, but couldn't get a clear answer. Finally, he 'fessed up, & said that he didn't have any information on this lens (!)

SOldBear, you wrote "I'm confused that you tried it "at both 70mm & 35mm. The 'macro' setting is next to 70mm setting. How can you try at 35mm?"
It's simple, after the above experience, I was confused, & thinking I'd tried every possible combination of actions. I was wr... wr... wr... not right ! My bad !

Thanks again, all !
09-06-2009, 07:02 PM   #6
New Member




Join Date: Sep 2009
Posts: 4
Original Poster
p.s. SOldBear, thanks for the pic showing the

aperture ring well into the Macro green area; it gave me confidence to twist it hard enough to get into the macro setting.
09-06-2009, 09:06 PM   #7
Pentaxian
Nick Siebers's Avatar

Join Date: Jun 2008
Location: Madison, WI
Photos: Gallery | Albums
Posts: 2,140
It's a great little lens - enjoy!
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
35-70mm, 70mm, aperture, change, function, k-mount, lens, macro, pentax lens, section, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Disassembling a lens, advice needed deepbluish Pentax SLR Lens Discussion 44 05-28-2009 05:39 AM
Serious Advice on lens needed netuser Pentax SLR Lens Discussion 32 05-03-2009 12:50 PM
Lens advice needed madmac57 Troubleshooting and Beginner Help 11 04-13-2009 06:49 PM
Lens Advice Needed Slick Pentax SLR Lens Discussion 4 10-01-2008 02:37 PM
Zoom lens advice needed Lensvision Pentax SLR Lens Discussion 7 02-29-2008 10:47 AM



All times are GMT -7. The time now is 02:39 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top