FAQ FAQ  Forum Search   Events   Register Register  Login Login

Shorter macro lens with internal focus?

Page  123>
Author
dbrusco View Drop Down
Newbie
Newbie

Joined: 29 August 2007
Country: United States
Location: United States
Status: Offline
Posts: 39
Post Options Post Options   Quote dbrusco Quote  Post ReplyReply Direct Link To This Post Topic: Shorter macro lens with internal focus?
    Posted: 27 January 2021 at 07:38
I have a Sony FE 90mm f/2.8 Macro G OSS Lens which I use with a Sony Alpha a7R III. At times, I want a shorter macro lens. Is there one that has internal focus?


 



Back to Top
mirthseeker View Drop Down
Senior Member
Senior Member

Joined: 02 October 2011
Country: Australia
Location: Melbourne
Status: Offline
Posts: 762
Post Options Post Options   Quote mirthseeker Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 07:46
Sigma 70mm F2.8 DG MACRO Art   internal focus in our database, but one review states that the barrel extends when focussing. Further reading reveals that the barrrel extends on close focussing. Photography Blog review. Internal focus but barrel extends?
Sony 30mm F3.5 Macro (APSC}

Edited by mirthseeker - 27 January 2021 at 08:45
Back to Top
Wētāpunga View Drop Down
Senior Member
Senior Member

Joined: 02 September 2007
Country: New Zealand
Location: New Zealand
Status: Offline
Posts: 5886
Post Options Post Options   Quote Wētāpunga Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 08:36
Originally posted by dbrusco dbrusco wrote:

I have a Sony FE 90mm f/2.8 Macro G OSS Lens which I use with a Sony Alpha a7R III. At times, I want a shorter macro lens. Is there one that has internal focus?




I don't think so. The Sony 50/2.8 and Sigma 70/2.8 extend (but are AF).
The excellent Voigtlander 65 is manual and extends.

Not sure about the Laowa options but I suspect their price point excludes IF design.
a7riii- Voigtländer 15/4.5, 110/2.5 M; Zeiss Loxia- 21/2.8, 35/2, 50/2 & 85/2.4, Zeiss Batis- 85/1.8 & 135/2.8; Sony 24-105/4 G; Sigma 70/2.8 M; Tamron 150-500 f5-6.7; Sony SAL 135/2.8 STF
Back to Top
pegelli View Drop Down
Admin Group
Admin Group
Dyxum Administrator

Joined: 02 June 2007
Country: Belgium
Location: Schilde
Status: Offline
Posts: 32498
Post Options Post Options   Quote pegelli Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 08:55
Internal focus and barrel extension are not mutually exclusive.

For instance the Sigma 105/2.8 and Minolta 100/2.8 do both. With those lenses focus is achieved partly by the internal focussing (shortening the focal length) and partly by extension, which can be less than without the internal focus action.

But my question is why you want a shorter focal length with internal focussing? With shorter lenses you need to get closer to the subject for the same magnification and internal focus will even further shorten the focus distance.
You can see the April Foolishness 2021 exhibition here Another great show of the talent we have on Dyxum
Back to Top
nandbytes View Drop Down
Senior Member
Senior Member

Joined: 09 January 2014
Country: United Kingdom
Location: London
Status: Offline
Posts: 3303
Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 08:59
If you are willing to adapt Nikkor AF-S 60mm f2.8 macro is a beauty and fully internal focussing.

natively the options are limited. Laowa 60mm macro doesn't extend but it is a DSLR designed lens with a dumb adapter permanently stuck to it for e-mount version.
my flickr
A1, A7C
Back to Top
QuietOC View Drop Down
Senior Member
Senior Member

Joined: 28 February 2015
Country: United States
Location: Michigan
Status: Offline
Posts: 3428
Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 10:15
I rebought a Tamron SP 60mm F2. It is an APS-C SLR lens, but it covers full-frame at close-focus.
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
 



Back to Top
Miranda F View Drop Down
Senior Member
Senior Member

Joined: 11 January 2014
Country: United Kingdom
Location: Bristol
Status: Offline
Posts: 3847
Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 10:28
How short do you want to go? And what macro ratio do you want?
Tamron do a range of 1:2 macro lenses from 20mm upwards, though the 45mm hasn't made it to E-mount yet.
If a lens is sharp near MFD (many aren't, but macros usually are), an extension tube will get you closer and with more magnification.

Have you considered a non-AF for macro? IME AF is not that useful in macro so i usually turn it off.
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
Back to Top
QuietOC View Drop Down
Senior Member
Senior Member

Joined: 28 February 2015
Country: United States
Location: Michigan
Status: Offline
Posts: 3428
Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 10:56
The Tamron M1:2 primes are not flat field 1:2 macro lenses. Their front elements all extend to focus too, though behind a stationary filter thread.
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
Back to Top
Hezu View Drop Down
Senior Member
Senior Member

Joined: 13 October 2007
Country: Finland
Location: HKI/KSNK
Status: Offline
Posts: 3257
Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 11:02
Originally posted by Wētāpunga Wētāpunga wrote:

Not sure about the Laowa options but I suspect their price point excludes IF design.
At least LAOWA 15 mm F4 Macro extends, although just 1 cm or so. And of course this wide angle macro is quite unique and certainly not the easiest tool to master given that for 1:1 magnification the subject must be mere few millimeters from the front lens element and usually you need to remove the sun hood to get that close.
Back to Top
dCap View Drop Down
Senior Member
Senior Member

Joined: 11 August 2005
Country: United Kingdom
Status: Offline
Posts: 6124
Post Options Post Options   Quote dCap Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 11:52
As others have suggested, but not listed them all, Tamron has three 'close-up' lenses which they market as "macro". These are all AF and achieve 1:2 (half life size):
- 20/2.8
- 24/2.8
- 35/2.8

It is unclear if the size of the lens changes with focus.
Walk out if it doesn't feel right
I can tell you're only lying
If you've got something better tonight
Then don't mess up my mind with your crying
Just Walk Out In The Rain
Eric Clapton, 1978
Back to Top
Petrochemist View Drop Down
Groupie
Groupie

Joined: 21 December 2020
Country: United Kingdom
Location: Essex
Status: Offline
Posts: 53
Post Options Post Options   Quote Petrochemist Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 12:33
The issue with short macro lenses is the lack of working distance (between the end of the lens & the subject).
I don't think any of my macros are internal focusing. Any with focal lengths below ~100mm are fairly unsuitable for insects & some can cause severe lighting difficulties. A few of the macro options I've tried have needed the lens within a few mm of the subject, realistically restricting them to subjects that can be backlit.
Back to Top
rastapartaman View Drop Down
Senior Member
Senior Member

Joined: 03 March 2007
Country: Portugal
Location: Berkshire
Status: Offline
Posts: 520
Post Options Post Options   Quote rastapartaman Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 15:10
I think your only choice is the tamron 60mm f2.0
The working distance at minimum focus is the same between the Tamron 60f2 and the 90f2.8 because of the internal focus of the 60mm.
Very sharp lens and can double as a portrait lens. You will need a bit of post processing for portraits as the lens is just too sharp.
Don't think, Just click it!!

my Flickr
Back to Top
Hezu View Drop Down
Senior Member
Senior Member

Joined: 13 October 2007
Country: Finland
Location: HKI/KSNK
Status: Offline
Posts: 3257
Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 15:43
Originally posted by rastapartaman rastapartaman wrote:

I think your only choice is the tamron 60mm f2.0
The working distance at minimum focus is the same between the Tamron 60f2 and the 90f2.8 because of the internal focus of the 60mm.
Very sharp lens and can double as a portrait lens. You will need a bit of post processing for portraits as the lens is just too sharp.
Although that lens is not available natively for Sony E mount and given that it is designed for APS-C sensors it may not be that good option for cameras with larger sensors.
Back to Top
Miranda F View Drop Down
Senior Member
Senior Member

Joined: 11 January 2014
Country: United Kingdom
Location: Bristol
Status: Offline
Posts: 3847
Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2021 at 17:58
Well, as always I'm eager to be a contrarian.
I've had quite a lot of success with kit zoom lenses and extension tubes, despite having four 1:1 macro lenses and a lot more that say 'macro' on them somewhere but don't really mean it.
On A-mount the 18-55 already gives a much getter magnification than almost any non-macro E-mount lens and with short extension tubes there's no difficulty in getting down between 0.5 and 1:1.

So I bought a set of Meike extension tubes (10mm + 16mm) to try it on E-mount. E-mount lenses generally have a poor MFD and magnification compared to A-mount but, as usual, the cheap zooms do much better in both than the 'better' lenses. The kit zooms that are sharp near MFD behave quite well with extension tubes - not all lenses do that.

I tried both 10mm and 16mm separately & together on the 18-55mm OSS and 28-70mm FE OSS (both the FE lens and the tubes delivered today )

Results are very good. With the 10mm and 16mm there is an improvement in magnification and the MFD gets much shorter (especially at the wide end).

With 26mm extension on the 28-70 I can get better than 1:1 with good detail at f8 indicated (actual F will be larger, of course) and with the 10 or 16mm alone I can get better than 0.5:1 with a reasonable working distance (around 30-40cm).
With the 18-55, the 16mm tube alone gave good results.

In both cases the AF and OSS worked fine, though the AF will take longer to lock if you move out of the focus range then back in. But still a lot faster than screw-drive A-mount macros ...

As is common with extension tubes, the zoom control tends to affect the working distance more than the magnification.

My usual test subject is a white screen on my monitor with a 40mm diam analogue clock on the screen. Always with jpegs in camera.

Checking to 100% or so with zoom in camera, it is clear that the increased magnification is associated with a definite increase in resolution and isn't simply making the blurry bits a lot bigger. The image was also fairly sharp to the edges of the screen (at f8-10) for both lenses, though that is rarely important in the 3-D real world!

I am not suggesting this will challenge a dedicated 1:1 macro lens for ultimate quality (it won't!), but for casual use it is very effective, very cheap, and the tubes are easy to carry around (easier than another lens ...)

The Meike tubes look well engineered, fit well, and look good.
SO, I'd honestly recommend anyone thinking of buying a macro lens to try extension tubes first. If they're not good enough you won't have lost much, but with a single tube (say 10mm APS-C, 16mm FF) you get a useful extra magnification with quite a reasonable working distance for (say) flowers and the larger insects.




Edited by Miranda F - 27 January 2021 at 18:02
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
Back to Top
Dyxum main page >  Forum Home > Equipment forums > Lens Talk > E-mount lenses Page  123>

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.078 seconds.

Monitor calibration strip

Dyxum.com - Home of the alpha system photographer

In memory of Cameron Hill - brettania

Feel free to contact us if needed.