Pictures Lab is a Windows Phone editor that offers a wide selection of editing tools such as effects filters, cropping tools, and exposure adjustments. The photography app is available for both Windows Phone 7.x and 8 devices and the Windows Phone 8 version was recently updated.
The version 5.4 brings Instagram sharing via our Instagraph Windows Phone app along with fixes for a few issues with the native Twitter integration and other minor bugs.
Once you've finished your photo editing you will find a "via Instagraph" option under the Share/Post menu. You may have to adjust the crop to fit the Instagram format and then Pictures Lab will send you to a Instagraph editing page where you can add text and hashtags, then send the image to Instagram.
There is a series of filters that can be applied to your image prior to sending it to Instagraph but there doesn't appear to be a preview of the filters. A bug perhaps?
The integration with Instagraph is a nice addition to Pictures Lab and adds to the photo editing app's capabilities. There is a trial version available for Pictures Lab with the full version running $2.99.
You can find Pictures Lab here in the Windows Phone Store. Again, while Pictures Lab is available for both Windows Phone 8 and 7.x devices, the version 5.4 update only impacts the Windows Phone 8 version.